Transmittance spectrum
CdTe single crystal and some elements:
| Application fields: | IR optics; electrooptical modulators; substrates; detectors; crystal pieces for vacuum deposition. |
| Structure | Cubic zincblende |
| Density: | 5.85 g/cm3 |
| Knoop Hardness: | 45 kg/mm2 |
| Young’s Modulus: | 3.7´1011 dyne/cm2 |
| Rupture Modulus: | 2.2´108 dyne/cm2 |
| Poisson Ratio: | 0.41 |
| Coefficient of Thermal Expansion: | 5.9´10-6/K |
| Specific Heat: | 0.21 J/gK |
| Thermal conductivity (at 25 oC): | 0.06 W/cmK |
| Max. Transmittance (l =7-12 mm): | ³ 66 % |
| Absorption Coefficient (l =10.6 mm): | £ 0.003 cm-1 (including 2 surfaces) |
| Thermo-Optic Coefficient (dn/dT): | 11.0 (l =10.6 mm) |
| Refractive index (l =10.6 mm): | 2.69 |
| Electrooptical coefficient r41 (l =10.6 mm): | 6.8´10-12 m/V |
| Max. IR-optic blank diameter/length: | Æ 40´45 mm |
| Max. single crystal diameter/length: | Æ 40´30 mm |
Transmittance spectrum
CdTe single crystal and some elements:
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