The rich abundance of silicon in nature and its minimum toxic property is a distinct commercial advantage over other synthetic materials. They comprise thermal stability, high durability and low costs. The mechanical strength and fracture properties are important for the structural aspect of the optical system.
Our mirrors are coated for maximum reflectivity. PLEIGER’s manufacturing capability covers optics for CO2-lasers and optical instruments.
Silicon mirrors are available plano and spherical.
Silicon Properties / Standard Specifications / Options
Electrical resistivity ( M Ω m ): 6*
Temperature coefficient ( K-1 ): – 0.7*
Density ( g cm-3 ): 2,33
Melting point ( °C ): 1410
Thermal conductivity @23 °C ( W m-1 K-1 ): 163
*depends strongly on impurities
Diameter: +/- 0,1 mm
Thickness: +/- 0,2 mm
Paralleslism: < 3 arc min
Clear aperture: 90 % of diameter
Figure: 1/40 wave at 10,6 µm
– Coatings [more]