ISP Optics Silicon (Si) Windows
Original price was: $120.00.$84.00Current price is: $84.00.
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ISP Optics Silicon (Si) Windows provide transmission in the Near-Infrared (NIR) and Mid-Wave Infrared (MWIR) from 1.2 – 7μm. Silicon features a Knoop Hardness of 1150, making it harder and less brittle than Germanium. A High-Durability Anti-Reflection (HDAR) coating option increases the durability of the substrate while significantly improving transmission from 3 – 5μm, enabling use in harsh environments. ISP Optics Silicon (Si) Windows are ideal for weight-sensitive IR applications due to its low density of 2.329 g/cm3, which is half as dense as Germanium and Zinc Selenide. These windows are ideal for NIR imaging applications and are important for detection of sources radiating at a black body temperature of 700K.
- Transmission from 1.2 – 7μm
- Available Uncoated or HDAR Coated for 3 – 5μm
- Ideal for Weight Sensitive Applications
| Bevel | Protective as needed |
|---|---|
| Clear Aperture (%) | 85 |
| Coefficient of Thermal Expansion CTE (10-6/°C) | 2.55 |
| Density (g/cm3) | 2.33 |
| Edges | Fine Ground |
| Index of Refraction nd | 3.422 @ 5µm |
| Knoop Hardness (kg/mm2) | 1150 |
| Parallelism (arcmin) | <3 |
| Poisson's Ratio | 0.265 |
| Substrate | Silicon (Si) |
| Surface Flatness (P-V) | 2λ |
| Surface Quality | 40-20 |
| Young's Modulus (GPa) | 140 |
| Type of Window | Crystal |
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