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 Window (Lambda/2) > 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 Bulk Discounts! Where (B) appears next to a price below, bulk prices are available, click the (B) button to view! PDF Part No. Material Diameter (mm) Thickness (mm) Price Qty Buy WHF1000-AU1 UV fused silica 10 2 £23.25 WHF1500-AU1 UV fused silica 15 3 £27.50 WHF2500-AU1 UV fused silica 25 3 £34.50 WHF4000-AU1 UV fused silica 40 3 £49.50 WHF5000-AU1 UV fused silica 50 4 £63.00 WHF6500-AU1 UV fused silica 65 6 £108.00 Knight Optical > Windows > UV Fused Silica Window (Lambda/2) > Diameter- (AR coated 245-400nm)
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)