LiTaO3
The chemical formula of lithium tantalate is LiTaO3. Colorless or light yellow crystals. It is a ferroelectric crystal with excellent electro-optical, piezoelectric, electrical and pyroelectric properties. Use the pulling method to grow. It is used as a Q-switch in laser technology, as a pyroelectric detector in infrared technology, and can also be used to make filters and resonators.CasCrysTech (CCT) provides high quality lithium tantalate (LiTaO3) crystals upon request from customers.
Uses/Applications
It is used as a Q-switch in laser technology, as a pyroelectric detector in infrared technology, and can also be used to make filters and resonators.
Features/Benefits
Excellent electro-optical, piezoelectric, electrical and pyroelectric properties.
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Purity
>99.995%
Crystal Structure
Oblique hexahedron, space group:C63vR3C
Lattice Constant
a=5.154Å c=13.783 Å
Melting Point
1650℃
Curie Temperature
665±5℃
Density
7.45（g/cm3）
Mohs Hardness
5.5~6（mohs）
Color
Colorless or light yellow
Refractive Index
no=2.176 ne=2.180 （633nm）
Primary Electro-Optic Coefficient
r12=7.0×10-12m/V，
Electromechanical Coupling Coefficient
R15≥0.3
Resistivity
1015w.m
Intensity of Spontaneous Polarization
50×10-6C/cm2
Pyroelectric Coefficient
2.3×10-7 C/cm2K
Dielectric Constant
es11/eo:39~43 es33/eo:42~43
et11/eo:51~54 et33/eo:43~46Thermal Expansion
aa=1.61×10-6/k，ac=4.1×10-6/k
Standard Product
Name
Product
Direction
Standard Size
LTB
Crystal rod
X、Y、Z±1º
Ø2″×50mm
Ø3″×50mmLTW
Epitaxial polishing wafer
Double throw Ra<10Å
X, Y, Z or Y rotation with or without positioning edge
10×10×0.5mm
Ø2″×0.5mm
Ø3″×0.5mm
Ø3″×1.0mmPackage
Class 100 clean bag, Class 1000 super clean room
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According to customer requirements.