Jinan Crystrong Photoelectric Technology Co.,Ltd
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Impact Resistance And Thermal Fluctuations And Irradiation ZnSe For Infrared Applications
Magnesium fluoride arystals are used in optical system, it through theband of0.11 mu m - 8.5 microns, Irradiation will not lead to the production of color heart, it has good mechanical properties, can withstand the heat and mechanical shock. Has a weak birefringence properties.
Magnesium fluoride is an application of a wide range of crystal, has the following features:
ZnSe
Introduction:
Zinc Selenide is the most popular material for infrared applications. It can transmit from 0.6um to 20 um. With its low absorption at IR wavelengths and visible transmission ZnSe based components including windows, output couplers, Prisms and lenses are widely used especially for high power IR laser.
Main Application:
material processing, astronomy, night and IR vision systems etc.
Main Properties:
|
Growing Method |
Chemical Vapor Deposition(CVD) |
| Melting Point | 1525℃ |
| Transmission Band | 0.6-20um |
| Bulk Absorption Coefficient | 5X10-4cm-1 @10.6um |
| Density | 5.268g/cm3 |
| Refractive Index | 2.4015 at 10.6um |
| Young's Modulus | 67.2 GPa |
| Thermal Conductivity | 0.18W/cm/°C |
| Specific Heat | 0.356J/g/°C |
| Thermal Expansion | 7.57x10-6/C at 20°C |
ZnSe with:
|
Diameter |
+0.0/-0.10mm |
| Length | +/-0.2mm |
| Chamfer | 0.20+/-0.10mm @ 45° |
| Surface Figure (power/irregularity) at 0.63pm | 1.0 fringe/0.5 fringe |
| Parallelism | < 40 arc Seconds |
| Perpendicularity | <5arc min |
| Surface Quality | 10/20 |