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Silicon Windows
LaboratoriesOptical Material Data – Silicon Windows
Silicon – Si
Optical Material used for lenses, windows, prisms, mirrors and filters.
Silicon is primarily used as optical windows in the 3-5 micron region.
Windows are used to isolate different physical environments whilst allowing light to pass.
When selecting windows it is important to consider the following:
Materials
Transmission
Scattering
Wavefront Distortion
Parallelism
Material Specification:
Transmission Range – 1.2-15.0 µ
Crystal Structure – Diamond
Cleavage Plane – 111
Colour – Metallic Lustre
Density -2.329
Melting Point (°) – 1420
Reflection Loss – 46.1% (10µ) for 2 surfaces
Solubility Index – Insoluble
Hardness (Knoop) – 1150
Thermal Conductivity (Cal/cm sec°C) – 0.39 (40°C)
Thermal Expansion coefficient (/°C) – 4.15×10-6 (10-50°C)
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Lenses, Silicon, Windows, global, optics Product code: Silicon