Zinc Selenide - ZnSe
lenses, windows, mirrors, filters and prisms
Click here to download PDF version of this page.Used for Infrared windows, lenses, mirrors and prisms in the region 0.5 microns to 22 microns, major uses being laser optics and Forward Looking IR systems (FLIR).
| Transmission Range | 0.5 - 22.0 µ |
| Crystal Structure | Polycrystalline Cubic |
| Cleavage Plane | None |
| Colour | Yellow |
| Density | 5.27 |
| Melting Point (°) | 1525 |
| Reflection Loss | 29% (10.6µ) for 2 surfaces |
| Solubility index | Insoluble |
| Hardness (Knoop) | 120/50gm indenter |
| Thermal Conductivity (cal/cm sec°C) | 18Wm-1 °K-1 (25°C) |
| Thermal Expansion coefficient (/°C) | 7.57x10-6/°K |
Whilst every effort has been made to verify the data provided, no responsibility can be accepted for its accuracy