UV-fused silica windows (λ/2) These Fused-silica Windows are in UV grade material (Spectrosil B or equivalent) and usable down to 170nm. They have excellent chemical and radiation resistance, and are usable up to 1050°C, and have very low fluorescence. They are listed both coated and with a multiplayer AR-coating for 248-400nm.
Knight Optical > Windows > UV-fused silica windows ( λ /2) Diameter This is the section containing Diameter. Squares This is the section containing Squares. Diameter- (AR coated 245-400nm) This is the section containing Diameter- (AR coated 245-400nm). Only UK and EU customers are charged VAT at 17.5%, customers outside the EU and EU customers based outside the UK who have a valid EU VAT number will not be charged VAT Knight Optical > Windows > UV-fused silica windows ( λ /2)
Specification   Material: UV fused silica (Spectrosil 2000 or equivalent) Material Data: (see materials section) Diameter: +0.0 / -0.20 mm Length / width: +0.0 / -0.20 mm Thickness: ±0.1 mm Flatness: <λ/2 (over 90% of dia) Parallelism <30 arcsec
Specific requirements We can manufacture UV fused silica windows to any size at short notice, so if your requirements are not listed please contact us by telephone / fax or email: stockrequirement@knightoptical.co.uk Options available   · Mounting (circles up to 50mm dia.)   · Other coatings   · Edging to smaller diameters See also Quartz windows (λ/2) Sapphire windows (2.5 λ)