Tellurium Oxide (TeO2 ) Crystal
TeO2 crystal, also known as tellurium dioxide, is an acousto-optic crystal material with high quality factor and excellent performance. TeO 2 crystal has the advantages of fast response, low driving power, high diffraction efficiency, stable and reliable performance, etc. Widely used in various acousto-optic devices such as acousto-optic deflectors, acousto-optic modulators, acousto-optic harmonics, acousto-optic filters and tunable filters. The resolution of acousto-optic devices made of tellurium oxide can be increased by orders of magnitude under the same clear aperture, so TeO 2 crystal is an acousto-optic device material with broad application prospects, especially for acousto-optic modulators and acoustic Optical harmonics are widely used in optical computing, optical communication, and optical microscopic imaging.
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Overview
Specifications
| Parameter | Value |
|---|---|
| chemical formula | TeO 2 |
| Molar mass | 159.60 g/mol |
| color | colorless |
| density | 5.99 ± 0.03 / cm3 |
| melting point | 733°C |
| hardness | 3-4 Mohs hardness tester |
| thermal expansion | 10 -6 К -1 : α 11 = 17.7; α 22 = 17.7; α 33 = 5.5 |
| symmetry | Tetragonal, 422 (D 4 ) |
| Lattice parameters | a = 4.8122 Å; c = 7.6157 Å |
| Transmittance [@633nm] | ＞70% @ 633nm |
| launch range | 0.33 ~ 5.0μm |
| Dielectric constant | ε 11 = 22.9; ε 33 = 24.7 |
| Elastic Constant | c 11 = 5.57; c 33 = 10.58; c 44 = 2.65; c 66 = 6.59; c 12 = 5.12; c 13 = 2.18 |
| Photoelastic coefficient@632.8nm | p11 = 0.0074; p12 = 0.187; p13 = 0.340; p31 = 0.0905; p33 = 0.240 ; p44 = -0.17; p66 = -0.0463 |
Key Features
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