Silicon Windows product
Silicon (Si) Windows manufactured from optical grade silicon are popular for the 1.2 - 7μm spectral region due to their low cost and low density. Due to its low density (half that of germanium or zinc selenide), silicon is ideal for weight sensitive applications, especially those in the 3 - 5μm region. Density is 2.329 g/cm3 and Knoop Hardness is 1150, making it harder and less brittle than germanium.
General specifications
Diameter
0.2-300mm
Thickness
0.1-30mm or Custom
Dimension tolerance
+/-0.02mm
Surface quality (scratch & dig)
20/10 or better
Clear aperture
>85%, >90%
Surface accuracy
λ/10
Parallelism
<30 arc sec
Bevel
0.1~0.3mm x 45 degree
Coating
AR/AR@3-5μm DLC/AR@8-14μm BBAR/BBAR@3-12μm
We can manufacture optical windows in any optical material required. Please contact us with your specific requirements.
