LiTaO3 crystal often be used to measure the electric field. It pertains to 3m crystal system. Compared to LiNbO3, it possesses higher electro-optic coefficient. Moreover, optical damage threshold, birefringence, transmission band, light transmittance, sensity in measurement ,and the wafer fabrication cost are also the superiority of LiTaO3.
Point group | C3v-3m |
Refractive index at 632.8nm | n0=2.176 |
ne=2.186 | |
Transparent Range | 0.4-5.0μm |
Orientation | X,Z,36°Y,42°Y,128°Y |
Melting point | 1650℃ |
Density | 7.45g/cm3 |
Mohs hardness | 5.5 |
Thermal expansion coefficient | aa=16×10-6/K, ac=4×10-6/K |
Specific heat | 0.06J/(kg•°C) |
Cell Parameters | a=5.154Å,c=13.781Å |
Curie Temperature | 605℃ |
Elastic Stiffness Coefficient | CE11=2.33(×1011N/m2) |
CE33=2.77(×1011N/m2) | |
Electro-optical coefficients@0.63μm | γS13=7×10-12m/V |
γS33=30.3×10-12m/V | |
Heat Capacity (Cp) |
100 J / k.mol |
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