Nonlinear optical crystal
LiTaO3 (LT) Crystal
The chemical properties of LiTaO3 single crystal are steady and its mechanical are good. Its curie temperature is high. LT crystal has good electro-optical, piezo-electric and pyro-electric propertie..

The chemical properties of LiTaO3 single crystal are steady and its mechanical are good. Its curie temperature is high. LT crystal has good electro-optical, piezo-electric and pyro-electric properties, so it is an excellent material for the making of SAW devices for color TV filters, infrared pyro-electric detectors and broad band high stability piezoelectric devices. Besides, LT crystal is also one of the light refractive materials that have applications in the laser technique. The Pyro-electric devices made by LT crystal are also connercialized.
Electro-optic device, Laser frequency multiplier, Acoustic-optic Device
Crystal Class
|
Trigonal
|
point Group
|
3m
|
Space Group
|
R3c
|
Lattice Parameter (nm)
|
a=0.5154. c=1.3781
|
Melting Point
|
1650 ℃
|
Density
|
7.46 g/cm3
|
Curie Temp
|
630 ℃
|
Hardness
|
5.5 Mohs
|
Transparency Range
|
400--5000 nm
|
Refractive Index
|
no=2.176、ne=2.180
|
electro-optic Coefficient
|
r= 30.4 ×10-12m/V
|
Gradient of Refractive index
|
5 ×105/cm
|
Dimension tolerance
|
+/-0.05mm
|
Wedge Angle tolerance
|
+/-0.1°
|
Optical axis orientation
|
+/-0.3°
|
Flatness
|
λ/4@633 nm
|
Surface Quality
|
20/10
|