Tellurium Dioxide（TeO2）
Tellurium Dioxide（TeO2）
Tellurium dioxide (TeO2) crystal is an acousto-optic material with high quality factor, and has good birefringence and optical rotation properties. The resolution of acousto-optic devices made of TeO2 single crystal can be improved by orders of magnitude, the response speed is fast, the driving power is small, the diffraction efficiency is high, and the performance is stable and reliable. TeO2 crystal has good acousto-optic properties and is an ideal material for making acousto-optic deflectors, modulators, resonators and filters.
Performance Parameters Of TeO2 Crystal
| Crystal class | Tetragonal |
| Refractive index | ηo=2.81; ηe=2.32 |
| Transitivity | ＞70% at 632.8nm |
| Thermal expansion at 293K,1/kParallel to ＜110＞Parallel to ＜001＞ | 19.5*10-6，6.10*10-6 |
| Acoustic velocities, km/sec For shear wave along ＜110＞For shear wave along ＜001＞ | 0.6174.26 |
| AO figures of meritM1, cm2,sec/g(shear/longitudinal)M2, cm2,sec/g(shear/longitudinal) | （68.6/142）*10-7（1200/34.5）*10-18 |
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