Request InfoUQG (Optics) Ltd.UQG Optics IR infrared transmitting windows are made in selection of IR materials. These include semi conductor and crystal optical materials of which some are widely used for there (UV) ultraviolet properties. Our optical grade Silicon windows are made from the Czochralski method producing Silicon 99.99% pure, used in optical filters and experiments. UQG Optics has an extensive range of stock sizes for a quick delivery CUSTOM RANGE Diameters: 5mm to 200mm Squares/Rectangles: 5mm to 140mm Thickness: 0.50mm to 25mm Surfaces: 80/50 to 40/20 Diameter/Thickness: ToL Up...See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra November 2022 IssueBroadband Antireflective WindowsTextured Broadband Antireflective Windows from Thorlabs Inc. feature textured surface technology for next-generation laser and sensing applications. 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