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Silicon Windows
Silicon Windows
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Silicon Windows manufactured from optical grade silicon are popular for the 1.2 - 8μm spectral region due to their low cost and low density. Due to its low density, silicon is ideal for weight sensitive applications, especially those in the 3 - 5μm region. Density is 2.329 g/cm3and Knoop Hardness is 1150, making it harder and less brittle than germanium.
Capability:
| Material | Silico |
| Diameter Tolerance | +0.0, -0.2m |
| Thickness Tolerance | ±0.1mm |
| Parallelism | <3 arc minut |
| Surface Quality | 60/40 scratch and dig |
| Surface Flatness | λ/2 @ 632.8n |
| Clear aperture | >90% |
Note: Custom sizes and coatings are available upon request.
