111 Optical Window Crystals

Optical Window Crystals

Infrared crystals have the characteristics of high transmittance, high refractive index uniformity, stable mechanical properties, non-deliquescent, and strong resistance to radiation damage. They are ideal materials for making various optical windows, prisms, lenses and other optical components, and are widely used in guidance technology and infrared imaging. Common infrared crystals are MgF2, CaF2, Ge, Al2O3, LiF, BaF2, YAG, etc.

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    ["id"] => string(2) "25"
    ["lang"] => string(2) "en"
    ["title"] => string(5) "Al2O3"
    ["brief"] => string(0) ""
    ["application"] => string(375) "It is widely used in many fields of industry, national defense and scientific research (such as high-temperature infrared windows, etc.). 
It is also a widely used single crystal substrate material, and it is the first choice for the blue, violet, and white light emitting diode (LED) and blue laser (LD) industries. 
It is also an important superconducting film substrate."
    ["content"] => string(16594) "<table cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Crystal Structure</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Hexagonal</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Lattice Constant</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">a=4.748Å, c=12.97Å</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Density </span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">3.98 (g/cm</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: " times="" new="" font-size:="">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Melt Point</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: " times="" new="" font-size:="">2040℃</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Growth Method</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Czochralski, Kyropoulos </span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Mohs Hardness</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">9<span style="font-size: 14px; font-family: 宋体;">(</span><span style="font-size: 14px; font-family: " times="" new="">mohs</span><span style="font-size: 14px; font-family: 宋体;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Refractive Index</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0); word-break: break-all;" valign="top"><p style="text-indent: 0"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">300K<span style="font-family: 宋体;">&nbsp; &nbsp;&nbsp;</span></span><span style="font-family: 宋体; font-size: 14px;">∥c</span><span style="font-family: " times="" new="" font-size:="">,<span style="font-family: " times="" new="">1.762 @630nm</span></span></span></p><p style="text-indent: 71px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: 宋体; font-size: 14px;">⊥</span><span style="font-family: " times="" new="" font-size:="">c<span style="font-family: 宋体;">,</span><span style="font-family: " times="" new="">1.770 @630nm</span></span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Thermal Expansion </span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">5.8 ×10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-6</span></sup><span style="font-family: " times="" new="" font-size:="">/K</span></span></p></td></tr><tr style="height:7px"><td rowspan="3" style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Thermal Conductivity<span style="font-size: 14px; font-family: 宋体;">(</span><span style="font-size: 14px; font-family: " times="" new="">W/mK)</span><span style="font-size: 14px; font-family: 宋体;">)</span></span></p></td><td colspan="2" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: 宋体; font-size: 14px;">⊥</span><span style="font-family: " times="" new="" font-size:="">c</span></span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">//c</span></p></td></tr><tr style="height:7px"><td colspan="2" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: " times="" new="" font-size:="">23℃, 55</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: " times="" new="" font-size:="">26℃,&nbsp;60</span></p></td></tr><tr style="height:7px"><td colspan="2" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: " times="" new="" font-size:="">77℃&nbsp;,40</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: " times="" new="" font-size:="">70℃,&nbsp;41</span></p></td></tr><tr style="height:9px"><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p style="text-indent: 0"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Loss Tangent at 293K</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">1×10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-4</span></sup><span style="font-family: " times="" new="" font-size:="">(<span style="font-family: " times="" new="">1MHz</span><span style="font-family: 宋体;">)</span></span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">Dielectric Constant at 10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: " times="" new="" font-size:="">-10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">9</span></sup><span style="font-family: " times="" new="" font-size:="">Hz @25℃</span></span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0); word-break: break-all;" valign="top"><p style="margin-left: 24px;text-indent: 0"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: 宋体; font-size: 14px;">∥</span><span style="font-family: " times="" new="" font-size:="">c<span style="font-family: 宋体;">,</span><span style="font-family: " times="" new="">11.5</span></span></span></p><p style="margin-left: 24px;text-indent: 0"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: 宋体; font-size: 14px;">⊥</span><span style="font-family: " times="" new="" font-size:="">c<span style="font-family: 宋体;">,</span><span style="font-family: " times="" new="">9.3</span></span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Transmittance</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">80<span style="font-size: 14px; font-family: 宋体;">%</span><span style="font-size: 14px; font-family: " times="" new="">@ 400~4000nm</span></span></p></td></tr><tr style="height:5px"><td rowspan="4" style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Orientation</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">A-plane</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">&lt;11-20&gt;<!--11-20--><!--11-20--><!--11-20--><!--11-20--><!--11-20--><!--11-20--><!--11-20--><!--11-20--><!--11-20--></span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">2.379 Å</span></p></td></tr><tr style="height:5px"><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">R-plane</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">&lt;1-102&gt;<!--1-102--><!--1-102--><!--1-102--><!--1-102--><!--1-102--><!--1-102--><!--1-102--><!--1-102--><!--1-102--></span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">1.740 Å</span></p></td></tr><tr style="height:5px"><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">M-plane</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">&lt;10-10&gt;<!--10-10--><!--10-10--><!--10-10--><!--10-10--><!--10-10--><!--10-10--><!--10-10--><!--10-10--><!--10-10--></span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">1.375 Å</span></p></td></tr><tr style="height:5px"><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">C-plane</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">&lt;0001&gt;<!--0001--><!--0001--><!--0001--><!--0001--><!--0001--><!--0001--><!--0001--><!--0001--><!--0001--></span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">2.165 Å</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Crystallographic Orientation Tolerance</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">±0.5°</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Regular Size and Tolerance</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">10×3mm,10×5mm<span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">10×10mm,15×15mm</span><span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">20×15mm</span><span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">20×20mm</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Regular Thickness and Tolerance </span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.5mm<span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">1.0mm</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Polishing</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">One side or two sides</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Surface Roughness</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Ra&lt;5Å<span style="font-size: 14px; font-family: 宋体;">(</span><span style="font-size: 14px; font-family: " times="" new="">5×5μm</span><span style="font-size: 14px; font-family: 宋体;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: rgb(0, 0, 0); border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Package</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: rgb(0, 0, 0);" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Class 100 clean bag, Class 1000 super clean room</span></p></td></tr></tbody></table><p><br/></p>"
    ["content2"] => string(319) "<p><span style="font-size: 14px;">Regular Size and Tolerance</span></p><p><span style="font-size: 14px;">10×3mm,10×5mm,10×10mm,15×15mm,20×15mm,20×20mm</span></p><p><br/></p><p><span style="font-size: 14px;">Regular Thickness and Tolerance</span></p><p><span style="font-size: 14px;">0.5mm,1.0mm</span></p>"
    ["content_detail"] => string(2408) "<p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-size: 14px;">Sapphire (white sapphire, Al</span><sub><span style="font-size: 14px; vertical-align: sub;">2</span></sub><span style="font-size: 14px;">O</span><sub><span style="font-size: 14px; vertical-align: sub;">3</span></sub><span style="font-size: 14px;">) single crystal is an excellent multifunctional material. It has high temperature resistance, good thermal conductivity, high hardness, infrared transmission and good chemical stability. It is widely used in many fields of industry, national defense and scientific research (such as high-temperature infrared windows, etc.). At the same time, it is also a widely used single crystal substrate material, and it is the first choice for the blue, violet, and white light emitting diode (LED) and blue laser (LD) industries. And it is also an important superconducting film substrate. In addition to making Y-series, La-series and other high-temperature superconducting films, it can also be used to grow new practical MgB</span><sub><span style="font-size: 14px; vertical-align: sub;">2 </span></sub><span style="font-size: 14px;">superconducting films.&nbsp;</span></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-size: 14px;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"></span><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-align: justify;">CasCrysTech (CCT) provides high quality sapphire(</span><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-align: justify;">&nbsp;Al</span><sub style="font-family: arial, helvetica, sans-serif; text-align: justify; white-space: normal;"><span style="font-size: 14px; vertical-align: sub;">2</span></sub><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-align: justify;">O</span><sub style="font-family: arial, helvetica, sans-serif; text-align: justify; white-space: normal;"><span style="font-size: 14px; vertical-align: sub;">3</span></sub><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-align: justify;">)&nbsp;crystal which can be customized upon customer&#39;s requirements.</span><span style="font-family: arial, helvetica, sans-serif; font-size: 14px;"></span></span></span></p>"
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    ["meta_title"] => string(25) "Sapphire(Al2O3) substrate"
    ["meta_key"] => string(64) "Sapphire substrate, optical window, dielectric loss,Loss Tangent"
    ["meta_desc"] => string(255) "Sapphire (white sapphire, Al2O3) single crystal is an excellent multifunctional material. High temperature resistance, good thermal conductivity, high hardness, infrared transmission, good chemical stability. National defense and scientific research (high"
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  [1] => array(28) {
    ["id"] => string(2) "26"
    ["lang"] => string(2) "en"
    ["title"] => string(3) "LiF"
    ["brief"] => string(0) ""
    ["application"] => string(315) "LiF is widely used to prepare optical windows, lenses, prisms and refractive elements in the ultraviolet-visible-infrared field. 
It can be used directly without anti-reflection coating. 
Lithium fluoride crystals can also be used as X-ray detector crystals, as well as coating materials for OLED display screens."
    ["content"] => string(16379) "<table width="595" cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Crystal Structure</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top-width: 1px; border-top-color: windowtext; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Cubic</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Lattice Constant</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">a=4.026 Å &nbsp;</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Melting Point</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: " times="" new="" font-size:="">870℃</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Density</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">2.635 </span><span style="font-family: 宋体; font-size: 14px;">(</span><span style="font-family: " times="" new="" font-size:="">g/cm</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: 宋体; font-size: 14px;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Mohs Hardness</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">4.0<span style="font-size: 14px; font-family: 宋体;">(</span><span style="font-size: 14px; font-family: " times="" new="">mohs</span><span style="font-size: 14px; font-family: 宋体;">)</span></span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Thermal Expansion</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">37.0 x 10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-6</span></sup><span style="font-family: " times="" new="" font-size:="">&nbsp;/K </span></span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Refractive Index</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">n=1.39</span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Transmission Wavelength</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">0.11-7.00 </span><span style="font-family: " times="" new="" color:="" font-size:="" background:="">μm</span></span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Transmittance</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">&gt; 90% @0.2~4.5 </span><span style="font-family: " times="" new="" color:="" font-size:="" background:="">μm;</span><span style="font-family: " times="" new="" font-size:="">&nbsp;</span></span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Color Deviation Hf-Hc</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.00395</span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="center"><p style="margin-top: 7px;margin-bottom: 7px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">Temperature Coefficient (dh/dt x10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-6</span></sup><span style="font-family: " times="" new="" font-size:="">)</span></span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">12.7 @0.6 m</span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Growth Method</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: " times="" new="" font-size:="">Bridgeman, Czochralski</span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Cleavage Plane</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">&lt;100&gt;<!--100--><!--100--><!--100--><!--100--><!--100--><!--100--></span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">D</span><span style="font-family: 宋体; font-size: 14px;">i</span><span style="font-family: " times="" new="" font-size:="">mension</span></span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">10×10</span><span style="font-family: 宋体; font-size: 14px;">mm</span><span style="font-family: " times="" new="" font-size:="">,<span style="font-family: " times="" new="">20×20mm</span><span style="font-family: 宋体;">,</span><span style="font-family: " times="" new="">30×30mm</span><span style="font-family: 宋体;">,</span><span style="font-family: " times="" new="">Ø50.8mm</span></span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Thickness</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">0.5mm<span style="font-family: 宋体;">,</span><span style="font-family: " times="" new="">1.0mm </span></span><span style="font-family: 宋体; font-size: 14px;">(</span><span style="font-family: " times="" new="" font-size:="">Can be customized</span><span style="font-family: 宋体; font-size: 14px;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Polishing</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">One side or two sides</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Crystal Plane Orientation Accuracy</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">±0.5°</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Edge Orientation Accuracy</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">2°<span style="font-size: 14px; font-family: 宋体;">(</span><span style="font-size: 14px; font-family: " times="" new="">Special requirements can reach within 1°</span><span style="font-size: 14px; font-family: 宋体;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Surface Roughness</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: " times="" new="" font-size:="">Ra≤10Å<span style="font-family: 宋体;">(</span><span style="font-family: " times="" new="">5×5µm</span><span style="font-family: 宋体;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Package</span></p></td><td style="padding: 0px 7px; border-left: none; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Class 100 clean bag, Class 1000 super clean room</span></p></td></tr></tbody></table><p><br/></p>"
    ["content2"] => string(288) "<p><span style="font-size: 14px;">Dimension</span></p><p><span style="font-size: 14px;">10×10mm,20×20mm,30×30mm,Ø50.8mm</span></p><p><br/></p><p><span style="font-size: 14px;">Thickness</span></p><p><span style="font-size: 14px;">0.5mm,1.0mm (Can be customized)</span></p>"
    ["content_detail"] => string(1090) "<p><span style="font-size: 14px; background: rgb(249, 249, 249); font-family: arial, helvetica, sans-serif;">The transmittance of lithium fluoride crystal ranges from 110 nm in vacuum ultraviolet to 6.0 μm in infrared, and it is the material with the best transmittance in the vacuum ultraviolet region. This crystal is widely used to prepare optical windows, lenses, prisms and refractive elements in the ultraviolet-visible-infrared field. The low refractive index allows the crystal to be used directly without anti-reflection coating. Lithium fluoride crystals can also be used as X-ray detector crystals, as well as coating materials for OLED display screens. We can provide high-quality lithium fluoride single crystals grown by pulling and descending methods.</span></p><p><span style="font-size: 14px; background: rgb(249, 249, 249); font-family: arial, helvetica, sans-serif;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-align: justify;">CasCrysTech (CCT) provides high quality&nbsp;lithium fluoride(LiF) crystal to the clients.</span></span></p>"
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    ["meta_title"] => string(29) "lithium fluoride(LiF) crystal"
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    ["meta_desc"] => string(256) "Transmittance of lithium fluoride crystal ranges from 110 nm in vacuum ultraviolet to 6.0 μm in infrared.best transmittance in the vacuum ultraviolet region. Used in optical windows, lenses, prisms and refractive elements.CasCrysTech(CCT) provides high qu"
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It has low refractive index."
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    ["id"] => string(2) "22"
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    ["title"] => string(4) "MgF2"
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    ["application"] => string(99) "It is widely used in optical fiber communication, military industry and various optical components."
    ["content"] => string(17830) "<table width="595" cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Crystal Structure</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Tetragonal</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Lattice Constant</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">a=4.62 Å, c=3.06 Å,</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Melting Point</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">1255</span><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">℃</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Growth Method</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Bridgeman</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Density</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">3.18</span><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">&nbsp;(g/cm</span><sup><span style="font-family:&#39;Times New Roman&#39;;font-size:14px;vertical-align:super">3</span></sup><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">)</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Mohs H</span><span style="font-family:宋体;font-size:14px"><span style="font-family:Times New Roman">ardness</span></span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">4<span style="font-family:宋体">(</span><span style="font-family:Times New Roman">mohs</span><span style="font-family:宋体">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Thermal Expansion<span style="font-family:宋体">)</span></span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">13.7×10</span><sup><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px;vertical-align:super">-6</span></sup><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">/K (</span><span style="font-family:宋体;color:rgb(63,63,63);font-size:14px">∥</span><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">c),8.9×10</span><sup><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px;vertical-align:super">-6</span></sup><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">/K (</span><span style="font-family:宋体;color:rgb(63,63,63);font-size:14px">⊥</span><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">c)</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Thermal Conductivity </span><strong><span style="font-family: &#39;Times New Roman&#39;;font-size: 14px">/</span></strong></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">0.3</span><span style="font-family: &#39;Times New Roman&#39;;font-size: 14px">&nbsp;W/mK</span><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">@300K</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Refractive Index</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p style="line-height: 24px"><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">n</span><sub><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px;vertical-align:sub">o</span></sub><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">=1.37608 n</span><sub><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px;vertical-align:sub">e</span></sub><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">=1.38771(0.7μm)</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Transmission Wavelength</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">0.2-6.00</span><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">μm</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Transmittance</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">&gt; 90% @ 0.2-6.00</span><span style="font-family:&#39;Times New Roman&#39;;color:rgb(63,63,63);font-size:14px">μm</span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Dimension</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">5x5mm<span style="font-family:宋体">,</span></span><span style="font-family:宋体;font-size:14px"><span style="font-family:Times New Roman">1</span></span><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">0x10mm<span style="font-family:宋体">, </span><span style="font-family:Times New Roman">20x20mm</span><span style="font-family:宋体">,</span><span style="font-family:Times New Roman">Ø50.8mm.</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">T</span><span style="font-family:宋体;font-size:14px"><span style="font-family:Times New Roman">hickness</span></span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">0.5mm<span style="font-family:宋体">,</span><span style="font-family:Times New Roman">1.0mm</span></span><span style="font-family:宋体;font-size:14px">(</span><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Can be customized</span><span style="font-family:宋体;font-size:14px">)</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">P</span><span style="font-family:宋体;font-size:14px"><span style="font-family:Times New Roman">olishing</span></span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: &#39;Times New Roman&#39;;font-size: 14px">One side or two sides</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Orientation</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">&lt;001&gt;±0.5º<!--001--><!--001--><!--001--><!--001--><!--001--></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Crystal Plane Orientation Accuracy</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">±0.5°</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Edge Orientation Accuracy</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">2°<span style="font-family:宋体">(</span><span style="font-family:Times New Roman">Special requirements can reach within 1°</span><span style="font-family:宋体">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Bevel Wafer</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">According to specific requirements, wafers with edge-oriented crystal planes inclined at a specific angle (inclination angle 1°-45°) can be processed.</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family: &#39;Times New Roman&#39;;font-size: 14px">Surface Roughness</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: &#39;Times New Roman&#39;;font-size: 14px">Ra</span><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">≤10Å<span style="font-family:宋体">(</span><span style="font-family:Times New Roman">5×5µm</span><span style="font-family:宋体">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">P</span><span style="font-family:宋体;font-size:14px"><span style="font-family:Times New Roman">ackage</span></span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Class 100 clean bag, Class 1000 super clean room</span></p></td></tr></tbody></table><p><br/></p>"
    ["content2"] => string(321) "<p><span style="font-size: 14px;">Dimension</span></p><p><span style="font-size: 14px;">5x5mm,10x10mm, 20x20mm,Ø50.8mm</span></p><p><span style="font-size: 14px;"><br/></span></p><p><span style="font-size: 14px;">Thickness</span></p><p><span style="font-size: 14px;">0.5mm,1.0mm(Can be customized)</span></p>"
    ["content_detail"] => string(1444) "<p><span style="font-family: arial, helvetica, sans-serif;"><span style="color: rgb(51, 51, 51); font-size: 14px;">Magnesium fluoride crystal (MgF</span><sub><span style="color: rgb(51, 51, 51); font-size: 14px; vertical-align: sub;">2</span></sub><span style="color: rgb(51, 51, 51); font-size: 14px;">) belongs to the tetragonal crystal system, the melting point is 1255</span><span style="color: rgb(51, 51, 51); font-size: 14px;">℃</span><span style="color: rgb(51, 51, 51); font-size: 14px;">, the hardness is high, the mechanical properties are good, the chemical properties are stable, and it is not easy to deliquesce and corrode. The main fea</span><span style="color: rgb(51, 51, 51); font-size: 14px;">ture of the optical performance is that it has high transmission in the vacuum ultraviolet band. It is widely used in optical fiber communication, military industry and various optical components.</span></span></p><p><span style="font-family: arial, helvetica, sans-serif;"><span style="color: rgb(51, 51, 51); font-size: 14px;"><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-align: justify; background-color: rgb(249, 249, 249);">CasCrysTech (CCT) provides high quality&nbsp;</span><span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-align: justify; background-color: rgb(249, 249, 249);">Magnesium fluoride crystal (MgF2) crystal to the clients.</span></span></span></p>"
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    ["meta_title"] => string(33) "Magnesium fluoride crystal (MgF2)"
    ["meta_key"] => string(81) "Magnesium fluoride crystal,MgF2 crystal,high transmission,vacuum ultraviolet band"
    ["meta_desc"] => string(257) "Magnesium fluoride crystal (MgF2) belongs to the tetragonal crystal system, the melting point is 1255℃, the hardness is high, the mechanical properties are good, the chemical properties are stable, and it is not easy to deliquesce and corrode. The main fe"
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    ["feature"] => string(156) "High hardness;
Good mechanical and chemical properties are good;
Not easy to deliquesce and corrode. 
High transmission in the vacuum ultraviolet band."
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    ["id"] => string(2) "23"
    ["lang"] => string(2) "en"
    ["title"] => string(4) "CaF2"
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    ["application"] => string(78) "It is an ideal material for making various optical windows, prisms and lenses."
    ["content"] => string(11966) "<table cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Crystal Structure</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Cubic</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Density</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">3.18<span style="font-family:宋体">(</span><span style="font-family:Times New Roman">g/cm</span></span><sup><span style="font-family:&#39;Times New Roman&#39;;font-size:14px;vertical-align:super">3</span></sup><span style="font-family:&#39;Times New Roman&#39;;font-size:14px"><span style="font-family:宋体">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Melt Point</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">1360℃</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Refractive Index</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">1.39908 at 5um</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Solubility</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">0.0017g/100cm<span style="font-family:宋体">(</span><span style="font-family:Times New Roman">20℃∕water</span><span style="font-family:宋体">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Transmission Wavelength</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">0.13~11.3μm</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Kjeldahl Hardness</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">158.3<span style="font-family:宋体">(</span><span style="font-family:Times New Roman">100</span><span style="font-family:宋体">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Elasticity Coefficient &nbsp;</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">C</span><sub><span style="font-family:&#39;Times New Roman&#39;;font-size:14px;vertical-align:sub">11</span></sub><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">=164<span style="font-family:宋体">、</span><span style="font-family:Times New Roman">C</span></span><sub><span style="font-family:&#39;Times New Roman&#39;;font-size:14px;vertical-align:sub">12</span></sub><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">=53<span style="font-family:宋体">、</span><span style="font-family:Times New Roman">C</span></span><sub><span style="font-family:&#39;Times New Roman&#39;;font-size:14px;vertical-align:sub">44</span></sub><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">=33.7</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Apparent Elastic Limit</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">36.54MPa</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Thermal Expansion</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">18.85×10</span><sup><span style="font-family:&#39;Times New Roman&#39;;font-size:14px;vertical-align:super">-6</span></sup><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">∕K</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family: &#39;Times New Roman&#39;;font-size: 14px">Orientation</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">&lt;100&gt;<span style="font-family:宋体">、</span><span style="font-family:Times New Roman">&lt;001&gt;<!--001--><!--001--><!--001--><!--001--><!--001--><!--001--></span><span style="font-family:宋体">、</span><span style="font-family:Times New Roman">&lt;111&gt;±0.5º<!--111--><!--111--><!--111--><!--111--><!--111--><!--111--></span><!--100--><!--100--><!--100--><!--100--><!--100--><!--100--></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext; word-break: break-all;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Dimension</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">10x10mm<span style="font-family:宋体">,</span><span style="font-family:Times New Roman">20x20mm</span><span style="font-family:宋体">,</span><span style="font-family:Times New Roman">30x30mm</span><span style="font-family:宋体">,</span><span style="font-family:Times New Roman">Ø50.8</span><span style="font-family:宋体">,</span><span style="font-family:Times New Roman">Ø76.2 </span><span style="font-family:宋体">,</span><span style="font-family:Times New Roman">Ø100mm</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Polishing</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">One side or two sides</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-family:&#39;Times New Roman&#39;;font-size:14px">Package</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="359" valign="top"><p><span style="font-family: &#39;Times New Roman&#39;;font-size: 14px">Class 100 clean bag, Class 1000 super clean room</span></p></td></tr></tbody></table><p><br/></p>"
    ["content2"] => string(155) "<p><span style="font-size: 14px;">Dimension</span></p><p><span style="font-size: 14px;">10x10mm,20x20mm,30x30mm,Ø50.8,Ø76.2 ,Ø100mm</span></p>"
    ["content_detail"] => string(888) "<p><span style="font-family: arial, helvetica, sans-serif;"><span style="color: rgb(51, 51, 51); font-size: 14px;">Calcium fluoride (CaF</span><sub><span style="color: rgb(51, 51, 51); font-size: 14px; vertical-align: sub;">2</span></sub><span style="color: rgb(51, 51, 51); font-size: 14px;">) crystal has a wide light transmission range (good light transmission performance in the wavelength range of 0.13μm~10μm), low stress birefringence (no obvious intrinsic birefringence above 200nm), uniform refractive index, stable mechanical properties, non-deliquescent, and strong against radiation damage. It is an ideal material for making various optical windows, prisms and lenses.</span></span></p><p><span style="font-family: arial, helvetica, sans-serif;"><span style="color: rgb(51, 51, 51); font-size: 14px;">CasCrysTech (CCT) provides high quality CaF2 crystals.</span></span></p>"
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    ["meta_title"] => string(31) "Calcium fluoride (CaF2) crystal"
    ["meta_key"] => string(77) "optical window, prism,lense,light transmission range,low stress birefringence"
    ["meta_desc"] => string(249) "Calcium fluoride (CaF2) crystal has a wide light transmission range (good transmission in the range of 0.13μm~10μm), low stress birefringence (no obvious intrinsic birefringence above 200nm), uniform refractive index, stable mechanical properties."
    ["model"] => string(0) ""
    ["feature"] => string(298) "Wide light transmission range (good light transmission performance in the wavelength range of 0.13μm~10μm);
Low stress birefringence (no obvious intrinsic birefringence above 200nm);
Uniform refractive index;
Stable mechanical properties, non-deliquescent, and strong against radiation damage."
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  [4] => array(28) {
    ["id"] => string(2) "27"
    ["lang"] => string(2) "en"
    ["title"] => string(4) "BaF2"
    ["brief"] => string(0) ""
    ["application"] => string(190) "BaF2 crystal is widely used in infrared and ultraviolet windows and prism substrates.
broad application prospects in the fields of high energy physics, nuclear physics and nuclear medicine."
    ["content"] => string(9334) "<table cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Crystal Structure</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Cubic</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Lattice Constant</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">6.196Å &nbsp;</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Density</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">4.88<span style="font-family: 宋体;">(</span><span style="font-family: " times="" new="">g/cm</span></span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: " times="" new="" font-size:="">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Melt Point</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">1354℃</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Growth Method</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Bridgeman</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Mohs Hardness</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">3 (mohs)</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Thermal Expansion</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">18.1×10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-6</span></sup><span style="font-family: " times="" new="" font-size:="">/K //c</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Refractive Index</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">1.47443</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Transmission Wavelength</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.15-13.00 μm</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Transmittance</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">&gt;93%@5m&gt;75%@0.2m</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Color Deviation</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.00578Hf-Hc</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: 宋体; font-size: 14px;">T</span><span style="font-family: " times="" new="" font-size:="">emperature Coefficient</span></span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">15.2-6.2@0.8m</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Cleavage Plane</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">&lt;111&gt;<!--111--><!--111--><!--111--><!--111--></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: 宋体; font-size: 14px;">M</span><span style="font-family: " times="" new="" font-size:="">aximum Size</span></span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">Dia2</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">″</span></sup><span style="font-family: " times="" new="" font-size:="">×80mm</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Surface Roughness</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Ra&lt;5Å<span style="font-size: 14px; font-family: 宋体;">(</span><span style="font-size: 14px; font-family: " times="" new="">5×5μm</span><span style="font-size: 14px; font-family: 宋体;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: 宋体; font-size: 14px;">A</span><span style="font-family: " times="" new="" font-size:="">pplication</span></span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">infrared and ultraviolet windows, prism substrates </span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Polishing</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">One side or two sides</span></p></td></tr><tr><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext; border-style: solid;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Package</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Class 100 clean bag, Class 1000 super clean room</span></p></td></tr></tbody></table><p><br/></p>"
    ["content2"] => string(85) "<p><span style="font-size: 14px;">According to customer requirements.<br/></span></p>"
    ["content_detail"] => string(1775) "<p style="margin-left: 0px; text-indent: 0px; text-align: justify;"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-size: 14px;">Barium fluoride (BaF2) crystal belongs to cubic crystal system, good moisture resistance, melting point 1280 °C, high using temperature, the refractive index does not change much in a wide wavelength range and with a wide of light transmission range. The highest transmittance can reach&nbsp; &gt;90% in the wavelength range of 0.2μm to 10μm. BaF2 crystal has good optical and mechanical properties</span><span style="font-size: 14px;">. These make </span><span style="font-size: 14px;">B</span><span style="font-size: 14px;">a</span><span style="font-size: 14px;">F</span><sub><span style="font-size: 14px; vertical-align: sub;">2</span></sub><span style="font-size: 14px;">&nbsp;crystal </span><span style="font-size: 14px;">be</span><span style="font-size: 14px;">&nbsp;widely used in infrared and ultraviolet windows and prism substrates.</span></span></p><p style="margin-left: 0px; text-indent: 0px; text-align: justify;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">In addition, BaF2 crystals also have excellent scintillation properties (due to their fast and slow 2 luminescence components, the crystal can simultaneously measure energy spectrum and time spectrum, Moreover, the energy resolution and time resolution are relatively high, so the BaF2 has broad application prospects in the fields of high energy physics, nuclear physics and nuclear medicine.</span></p><p style="margin-left: 0px; text-indent: 0px; text-align: justify;"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">CasCrysTech(CCT) provides barium fluoride (BaF2) crystal.</span></p>"
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    ["meta_title"] => string(31) "Barium fluoride (BaF2) crystal,"
    ["meta_key"] => string(77) "high temperature, stable refractive index, light transmission, windows, prism"
    ["meta_desc"] => string(215) "Barium fluoride (BaF2) crystal, high using temperature, stable refractive index,with a wide of light transmission range. good optical and mechanical properties. Infrared and ultraviolet windows and prism substrates."
    ["model"] => string(0) ""
    ["feature"] => string(519) "BaF2 crystal has good optical and mechanical properties. The refractive index does not change much in a wide wavelength range and with a wide of light transmission range. The highest transmittance can reach  >90% in the wavelength range of 0.2μm to 10μm. 
BaF2 crystals also have excellent scintillation properties (due to their fast and slow 2 luminescence components, the crystal can simultaneously measure energy spectrum and time spectrum, moreover, the energy resolution and time resolution are relatively high."
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  [5] => array(28) {
    ["id"] => string(2) "28"
    ["lang"] => string(2) "en"
    ["title"] => string(3) "YAG"
    ["brief"] => string(0) ""
    ["application"] => string(228) "Undoped pure YAG crystal is a new type of substrate and window material for ultraviolet and infrared optical equipment.
YAG crystal has an important optical application in high-temperature and high-energy physical environments."
    ["content"] => string(11900) "<table cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 0px 0px 4px; border-width: 1px; border-style: outset; border-color: windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Crystal Structure</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: 1px outset windowtext; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Cubic</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Lattice Constant</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-family: " times="" new="" font-size:="">12.01Å</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Melting Point</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">1970℃</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Mhos Hardness</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">8.5 (mohs)</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Density</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">4.55&nbsp;(g/cm</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: " times="" new="" font-size:="">)</span></span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Specific Heat</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">0.59 (J/g•cm</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-3</span></sup><span style="font-family: " times="" new="" font-size:="">) at 0-20℃</span></span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Elastic&nbsp;Modulus</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">310GPa</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Youngs Modulus</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">3.17x10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">4</span></sup><span style="font-family: " times="" new="" font-size:="">kg/mm</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">2</span></sup></span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Poisson Ratio</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.3</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="color: rgb(34, 34, 34); font-size: 14px; background: rgb(255, 255, 255); font-family: arial, helvetica, sans-serif;">Tensile Strength</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.13-0.26GPa</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="color: rgb(34, 34, 34); font-size: 14px; background: rgb(255, 255, 255); font-family: arial, helvetica, sans-serif;">Thermal Expansion </span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">[111]: 7.8x10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-6</span></sup><span style="font-family: " times="" new="" font-size:="">/K@0-250℃</span></span></p><p style="line-height: 28px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">[110]: 7.7x10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-6</span></sup><span style="font-family: " times="" new="" font-size:="">/K@0-250℃</span></span></p><p style="line-height: 28px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">[100]: 8.2x10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-6</span></sup><span style="font-family: " times="" new="" font-size:="">/K@0-250℃</span></span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Thermal Conductivity</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">14W/mK@20℃</span></p><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">10.5W/mK@100℃</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="color: rgb(51, 51, 51); font-size: 14px; background: rgb(255, 255, 255); font-family: arial, helvetica, sans-serif;">Thermo-Optic Coefficient</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">dn/dt = 7.3x10</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">-6</span></sup><span style="font-family: " times="" new="" font-size:="">/℃</span></span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Thermal-Shock Resistance</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">800W/m</span></p></td></tr><tr><td style="padding: 0px 0px 0px 4px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="256" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Solubility</span></p></td><td style="padding: 0px 0px 0px 4px; border-left: none; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext;" width="284" valign="center"><p style="line-height: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Insoluble in water and slightly soluble in acid</span></p></td></tr></tbody></table><p><br/></p>"
    ["content2"] => string(80) "<p><span style="font-size: 14px;">According to customer requirements.</span></p>"
    ["content_detail"] => string(1445) "<p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-size: 14px;">Yttrium-Aluminum Garnet (YAG) is isotropic&nbsp;crystal&nbsp;with&nbsp;cubic&nbsp;symmetry. It has excellent&nbsp;optical&nbsp;and thermodynamic properties. Its mechanical properties and chemical stability are close to those of sapphire crystals without the birefringence effect of sapphire. Pure&nbsp;YAG&nbsp;crystals&nbsp;have higher transmittance&nbsp;in the&nbsp;0.25~5um&nbsp;region, and no absorption&nbsp;at&nbsp;2-3μm&nbsp;, while glass has strong&nbsp;H</span><sub><span style="font-size: 14px; vertical-align: sub;">2</span></sub><span style="font-size: 14px;">O&nbsp;absorption band.&nbsp;Therefore, undoped pure&nbsp;YAG&nbsp;crystal is a new type of substrate and window material for ultraviolet and infrared optical equipment. At the same time, the&nbsp;excellent physical and chemical properties and optical properties of&nbsp;YAG&nbsp;crystal make it an important optical application in high-temperature and high-energy physical environments.</span></span></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif;"><span style="font-size: 14px;">CasCrysTech (CCT) provides high quality lithium <span style="font-family: arial, helvetica, sans-serif; font-size: 14px; text-align: justify;">Yttrium-Aluminum Garnet (YAG)&nbsp;</span> crystal to the clients.</span></span></p>"
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    ["sort"] => string(4) "1506"
    ["create_time"] => string(10) "1657441947"
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    ["meta_title"] => string(37) "Yttrium-Aluminum Garnet (YAG) crystal"
    ["meta_key"] => string(67) "Yttrium-Aluminum Garnet, high energy physical,strong H2O absorption"
    ["meta_desc"] => string(207) "Substrate and window material for ultraviolet and infrared optical equipment. 
Has excellent optical and thermodynamic properties.
Has application in high-temperature and high-energy physical environments."
    ["model"] => string(0) ""
    ["feature"] => string(331) "It has excellent optical and thermodynamic properties. Its mechanical properties and chemical stability are close to those of sapphire crystals without the birefringence effect of sapphire. Pure YAG crystals have higher transmittance in the 0.25~5um region, and no absorption at 2-3μm , while glass has strong H2O absorption band."
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  [6] => array(28) {
    ["id"] => string(2) "24"
    ["lang"] => string(2) "en"
    ["title"] => string(2) "Ge"
    ["brief"] => string(0) ""
    ["application"] => string(162) "The high-quality Ge substrates can be used in concentrated photovoltaic(CPV), outer-space solar-cell panel and high-bright light-emitting diode(LED) applications."
    ["content"] => string(19094) "<table width="595" cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Growth Method</span></p></td><td colspan="3" style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Czochralski</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Crystal Structure</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Cubic</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Lattice Constant</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">a=5.65754 Å &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Density</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:="">5.323(g/cm</span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: " times="" new="" font-size:="">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Melt Point</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">937.4℃</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Doping Element</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">no </span></p></td><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="136" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Sb</span></p></td><td style="padding: 0px 7px; border-width: 1px; border-color: windowtext;" width="136" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Ga</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Type</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">/</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">N</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">P</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Resistivity</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 14px; font-family: 宋体;">></span><span style="font-size: 14px; font-family: " times="" new="">35Ωcm</span></span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p style="text-indent: 28px"><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.01~35 Ωcm</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.05~35 Ωcm</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">EPD</span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:=""><span style="font-family: 宋体;"><</span><span style="font-family: " times="" new="">4×10</span></span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: " times="" new="" font-size:="">∕cm2</span></span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:=""><span style="font-family: 宋体;"><</span><span style="font-family: " times="" new="">4×10</span></span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: " times="" new="" font-size:="">∕cm2</span></span></p></td><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="136" valign="top"><p><span style="font-family: arial, helvetica, sans-serif;"><span style="font-family: " times="" new="" font-size:=""><span style="font-family: 宋体;"><</span><span style="font-family: " times="" new="">4×10</span></span><sup><span style="font-family: " times="" new="" font-size:="" vertical-align:="">3</span></sup><span style="font-family: " times="" new="" font-size:="">∕cm2</span></span></p></td></tr><tr style="height:11px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Dimension</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">10x3mm<span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">10x5mm</span><span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">10x10mm</span><span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">15x15mm</span><span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">20x15mm</span><span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">20x20mm</span><span style="font-size: 14px; font-family: 宋体;">,</span></span></p></td></tr><tr style="height:10px"><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><br/></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Dia50.8 mm ,dia76.2mm, Dia100 mm</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Thickness</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">0.5mm<span style="font-size: 14px; font-family: 宋体;">,</span><span style="font-size: 14px; font-family: " times="" new="">1.0mm</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Polishing</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">One side or two sides</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Orientation</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">&lt;100&gt;<span style="font-size: 14px; font-family: 宋体;">、</span><span style="font-size: 14px; font-family: " times="" new="">&lt;110&gt;<!--110--><!--110--><!--110--><!--110--><!--110--></span><span style="font-size: 14px; font-family: 宋体;">、</span><span style="font-size: 14px; font-family: " times="" new="">&lt;111&gt;<!--111--><!--111--><!--111--><!--111--><!--111--></span><span style="font-size: 14px; font-family: 宋体;">、</span><span style="font-size: 14px; font-family: " times="" new="">±0.5º</span><!--100--><!--100--><!--100--><!--100--><!--100--></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Crystal Plane Orientation Accuracy</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">±0.5°</span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Edge Orientation Accuracy</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">2°<span style="font-size: 14px; font-family: 宋体;">(</span><span style="font-size: 14px; font-family: " times="" new="">Special requirements can reach within 1°</span><span style="font-size: 14px; font-family: 宋体;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Bevel Wafer</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">According to specific requirements, wafers with edge-oriented crystal planes inclined at a specific angle (inclination angle 1°-45°) can be processed. </span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Surface Roughness</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-family: " times="" new="" font-size:="">Ra≤5Å<span style="font-family: 宋体;">(</span><span style="font-family: " times="" new="">5×5µm</span><span style="font-family: 宋体;">)</span></span></p></td></tr><tr><td style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="187" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Package</span></p></td><td colspan="3" style="padding: 0px 7px; border-left-width: 1px; border-left-color: windowtext; border-right-width: 1px; border-right-color: windowtext; border-top: none; border-bottom-width: 1px; border-bottom-color: windowtext;" width="408" valign="top"><p><span style="font-size: 14px; font-family: arial, helvetica, sans-serif;">Class 100 clean bag, Class 1000 super clean room</span></p></td></tr></tbody></table><p><br/></p>"
    ["content2"] => string(879) "<p><span style="font-size: 14px;">Dimension</span></p><p><span style="font-size: 14px;">10x3mm,10x5mm,10x10mm,15x15mm,20x15mm,20x20mm,</span></p><p><span style="font-size: 14px;"><span style="font-family: Helvetica; letter-spacing: 0px; font-size: 14px;">Ø</span><span style="font-family: " times="" new="" font-size:="">50.8 mm</span><span style="font-size: 14px; font-family: " times="" new="">, </span><span style="font-family: Helvetica; letter-spacing: 0px; font-size: 14px;">Ø</span><span style="font-family: " times="" new="" font-size:="">76.2mm, </span><span style="font-family: Helvetica; letter-spacing: 0px; font-size: 14px;">Ø</span><span style="font-family: " times="" new="" font-size:="">100 mm</span></span></p><p><br/></p><p><span style="font-size: 14px;">Thickness</span></p><p><span style="font-size: 14px;">0.5mm,1.0mm</span></p><p><br/></p>"
    ["content_detail"] => string(975) "<p style=";text-align:justify;text-justify:inter-ideograph"><span style=";font-family:Arial;font-size:14px">Germanium has good semiconductor properties. High-purity germanium is doped with trivalent elements (such as indium, gallium, boron) to obtain P-type germanium semiconductors, and pentavalent elements (such as antimony, arsenic, and phosphorus) are doped to obtain N-type germanium semiconductors. They have high electron mobility and high hole mobility.</span></p><p style=";text-align:justify;text-justify:inter-ideograph"><span style=";font-family:Arial;font-size:14px">The high-quality Ge substrates can be used in concentrated&nbsp;photovoltaic(CPV), outer-space solar-cell panel and high-bright light-emitting diode(LED) applications.&nbsp;</span></p><p style=";text-align:justify;text-justify:inter-ideograph"><span style=";font-family:Arial;font-size:14px">CasCrysTech (CCT) provides high quality&nbsp;Germanium (Ge) crystal crystal to the clients.</span></p>"
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    ["meta_title"] => string(22) "Germanium (Ge) crystal"
    ["meta_key"] => string(101) "Germanium (Ge) crystal,  P-type germanium,N-type germanium,high electron mobility,high hole mobility."
    ["meta_desc"] => string(254) "Germanium has good semiconductor properties. High-purity germanium is doped with trivalent elements (such as indium, gallium, boron) to obtain P-type germanium semiconductors, and pentavalent elements (such as antimony, arsenic, and phosphorus) are doped"
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    ["feature"] => string(222) "Germanium is doped with trivalent elements to obtain P-type germanium semiconductors, and doped with  pentavalent elements to obtain N-type germanium semiconductors. They have high electron mobility and high hole mobility."
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