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UV Grade Fused Silica Optical Windows, High Flatness/Parallelism
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- Ideal substrates for planar optical components, such as plane mirrors, filters, or beamsplitter plates
- Ideal for use as windows in optical systems
- High flatness and high parallelism
- Polishing grade P3 on both sides, both sides flatness λ/10 or λ/20 (see spec tables)
- Surfaces uncoated
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- Our plane plates are also available with the following coatings:
- VIS range (ARB2: R < 0.5 % per surface, AOI = 0°, λ = 450 - 700 nm).
- NIR range (ARB2: R < 0.5 % per surface, AOI = 0°, λ = 725 - 1050 nm).
- Nd:YAG fundamental (ARHS: R < 0.2 % per surface, AOI = 0°, center wavelength 1064 nm)
- Reflective aluminum coating (RAL: for λ = 400 nm - 12 μm, damage threshold > 200 mJ / cm2)
- Front surface mirror silver coating (RAGV: for λ = 500 nm - 12 μm, damage threshold > 200 mJ / cm2)
- For customized optics and higher volumes please contact our sales team for your individual quotation.
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Optical windows fabricated from UV-grade fused silica with higher flatness and high parallelism
| Part No. | Optic Size (mm) | Substrate | Optic Center Thickness (mm) | Parallelism | Design Wavelength (nm) | Tolerance Ø (mm) | Tolerance d (mm) | Flatness back surface (λ) | Flatness (λ) | Coating Specification | Weight (kg) |
| G390111000 | Ø25.4 | Fused Silica | 5 | 30'' | 200-2000 | -0.13 | ±0.2 | 1/10 | 1/10 | Uncoated | 0.006 |
| G390112000 | Ø25.4 | Fused Silica | 5 | 1'' | 200-2000 | -0.13 | ±0.2 | 1/20 | 1/20 | Uncoated | 0.006 |
| G390113000 | Ø40 | Fused Silica | 8 | 30'' | 200-2000 | -0.16 | ±0.2 | 1/10 | 1/10 | Uncoated | 0.022 |
| G390114000 | Ø40 | Fused Silica | 8 | 1'' | 200-2000 | -0.16 | ±0.2 | 1/20 | 1/20 | Uncoated | 0.022 |
| G390115000 | Ø50 | Fused Silica | 8 | 30'' | 200-2000 | -0.16 | ±0.2 | 1/10 | 1/10 | Uncoated | 0.035 |
| G390116000 | Ø50 | Fused Silica | 8 | 1'' | 200-2000 | -0.16 | ±0.2 | 1/20 | 1/20 | Uncoated | 0.035 |
| G390117000 | Ø63 | Fused Silica | 8 | 30'' | 200-2000 | -0.19 | ±0.2 | 1/10 | 1/10 | Uncoated | 0.055 |
| G390118000 | Ø63 | Fused Silica | 8 | 1'' | 200-2000 | -0.19 | ±0.2 | 1/20 | 1/20 | Uncoated | 0.055 |
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