Fused Silica Windows, Rectangular
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Broad transmission spectrum
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Thermal stability
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Scratch resistant
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Round, square and rectangular sizes available
When the broadest transmission spectrum is required (from 185nm to over 2 microns) together with high durability, all for a reasonable cost, these windows are ideal. Fused silica is physically robust and resists chipping and scratches. The coefficient of thermal expansion is quite low, so these windows maybe subjected to higher levels of thermal shock than glass or sapphire can withstand. Circular, square and rectangular shapes available.
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| Size (mm) | Thickness (mm) | Material | Surface Flatness | Surface Quality | Parallelism (arcsec) | Diameter tolerance | Thickness tolerance | Clear Aperture | Bevel | Thickness (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 x 20 | - | Fused Silica | λ/10 | 20-10 | ≤5 | +0, -0.1mm | ±0.1mm | >90% | 0.2mm x 45° typical | 5.0 |
| 15 x 30 | - | Fused Silica | λ/10 | 20-10 | ≤5 | +0, -0.1mm | ±0.1mm | >90% | 0.2mm x 45° typical | 5.0 |
| 20 x 35 | - | Fused Silica | λ/10 | 20-10 | ≤5 | +0, -0.1mm | ±0.1mm | >90% | 0.2mm x 45° typical | 5.0 |
| 25 x 40 | - | Fused Silica | λ/10 | 20-10 | ≤5 | +0, -0.1mm | ±0.1mm | >90% | 0.2mm x 45° typical | 6.0 |
| 30 x 50 | - | Fused Silica | λ/10 | 20-10 | ≤5 | +0, -0.1mm | ±0.1mm | >90% | 0.2mm x 45° typical | 8.0 |