| Our stock range of UV fused silica windows are made from Corning 7980 grade 2G, which is the equivalent of Spectrosil 2000 a.k.a. Spectrosil B. They have a good transmission in the UV region, usable down to 170nm, making them ideal for spectroscopic instruments in the UV. These windows also have excellent chemical stability, can be used up to 1050°C and are virtually free from fluorescence. The stock windows can be edged down or re-shaped for custom fused silica parts at short notice and we can offer them both uncoated or with AR coating for 248nm-400nm. Specifications: | Material: | UV fused silica (Spectrosil 2000 or equivalent) | | Diameter: | +0.0 / -0.20 mm | | Length / width: | +0.0 / -0.20 mm | | Thickness: | ±0.1 mm | | Flatness: | <λ/1 (over 90% of dia) | | Surface Quality: | <40-20 scratch/dig | | Parallelism | <30 arcsec | | Coating: | UV Fused silica windows with suffix "AU1" are coated both faces with multi-layer anti-reflective coating < 0.5% @ 248 - 400nm AR Coated for 248 - 400nm | | 
UV Fused Silica Windows
