Zinc Selenide
Used as transparent barriers for sending and receiving light between two phases under varying conditions in temperature pressure chemical composition cleanliness and phase. Windows made of zinc selenium (ZnSe or Zinc Selenide) the most commonly used optical material that allows transmission of infrared light.
Standard Specifications
|
Items |
Specifications |
|
Material |
Zinc Selenide (ZnSe) |
|
Designed Index |
2.403 @ 10.6µm |
|
Density |
5.27g/cm3 |
|
Heat Transfer Coefficient |
18 W/m・K |
|
Expansion Rate |
7.6×10-6/ ℃ |
|
Dimension Tolerance |
+0.0/-0.2 mm |
|
Thickness Tolerance |
± 0.2 mm |
|
Clear Aperture |
> 90% |
|
Parallelism |
< 1 arc minutes |
|
Flatness |
λ/20 at 10.6µm |
|
Surface Quality |
scratch and dig 60-40 |
|
Bevel |
0.5 (0/-0.3) mm |
