TeO2 crystal
Tellurium dioxide (TeO2) crystal material
Tellurium dioxide (TeO2) crystal is a kind of excellent acousto-optic crystal material with high quality factor. It is widely used in acousto-optic deflectors, acousto-optic modulators, acousto-optic harmonizers, acousto-optic filters and tunable filters. The acoustooptic devices made of tellurium oxide have the advantages of high response speed, small driving power, high diffraction efficiency and stable and reliable performance under the same aperture. Therefore, TeO2 crystal is a promising material for acoustooptic devices, especially for acoustooptic modulators and acoustooptic harmonics. It has been widely used in optical computing, optical communication, optical microscopic imaging and other technologies.
Basic property
| chemical formula | TeO2 |
| Density (g/cm3) | 6 |
| Melting point (℃) | 733 |
| Mohs hardness(Mohs) | 4 |
| Colour | Transparent (colorless) |
| Transmission band (mm) | 0.33~5.0 |
| Light transmittance @ 632.8 nm | > 70% |
| The refractive index @ 632.8 nm | ne = 2.411; no = 2.258 |
| Coefficient of thermal conductivity(mW/cm·℃) | 30 |
| Sound velocity (km/s) | 0.617 for shear wave along <110> 4.26 for longitudinal wave along <001> |
| Sound and light quality factors(10-18 sec3/g) | 1200 for shear wave along <110> 34.5 for longitudinal wave along <001> |
Shanghai Institute of Optics and Fine Mechanics can provide the largest diameter of 4 inches TeO2 crystal,wafer and wafer processing requirements can be customized according to customers’ demand.
