16 years of serving high-end industries with high-quality products |
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| Cadmium selenide is a most suitable crystal for IR optics, polarizers, λ/4 and λ/2 waveplates, beamsplitters, substrates, sources for vacuum deposition, DFM frequency converters. |
Structure | Wurtzite (Hexagonal) | Density: | 5.81 g/ cm3 | Young’s Modulus: | 5×1011 dyne/cm2 | Coef. of Thermal Expansion (500 K): | α 1=6.26×10-6/K; α 3=4.28×10-6/K | Specific Heat: | 0.49 J/gK | Thermal conductivity (at 25 °C): | 0.04 W/cmK | Max. Transmittance (λ =2.5-15 μm): | ≥ 71 % | Absorption Coef. (λ =10.6 μm): | ≤ 0.0015 cm-1 (including 2 surfaces) | Refractive index (λ =10.6 μm): | 2.4258 (no), 2.4437 (ne) | Specific resistivity | a). low: < 1 Ohm*cm b). high: > about 10^11 Ohm*cm | Max. single crystal diameter/length: | Ø40mm X L: 80 mm | Max. IR optic blank diameter/length: | Ø50mm X L:10 mm OR plate 50 mm X 15 mm X 12 mm |
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CdSe rods, wafers and substrates |
Diameter/Width | 1-50 mm | Thickness/length | 0.1-150 mm | Orientation | (0001), (10-10), (11-20) | Surface quality | As-cut, 80/50, 60/40 per MIL-0-13830 |
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CdSe crystal pieces for vapour deposition |
Purity | 99.995%, 99.999% | Particle size | 0.01- 10 mm |
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