PRODUCT CATALOGUE - Specac

Specac Product Catalogue 2011 | Opto-Physics Infrared PolarizersOpto-Physics Infrared PolarizersSpecac offer a range of opto-physics polarizers from stock in standard 25 or 50 mm supportrings. These are provided on Barium Fluoride (BaF2), Calcium Fluoride (CaF2), KRS-5, andZinc Selenide (ZnSe) substrates, and are manufactured at 2500 lines/mm to provideacceptable polarization performance at an economical price.SpecificationsWire Grid Spacing: 2500 lines/mmMounting Ring Diameters:25.0 +0.0/-0.2 mm50.0 +0.0/-0.2 mmMounting Ring Thickness:5.0 ±0.1 mm (Ø 25 mm)6.0 ±0.1 mm (Ø 50 mm)Polarizer Clear Aperture:18.0 ±0.1 mm (Ø 25 mm)34.0 ±0.1 mm (Ø 50 mm)Substrate Thickness:2.0 +0.0/-0.2 mm (Ø 25 mm)4.0 +0.0/-0.2 mm (Ø 50 mm)Typical Transmission (K1) and Attenuation (K2) Plots for Specac Economy PolarizersCaF 2 BaF 2ZnSeKRS-5SubstrateMaterialKRS-5CaF 2BaF 2ZnSeWavelength (µm) /Wavenumber (cm-1)2.5 / 40005 / 200010 / 10002.5 / 40005 / 200010 / 10002.5 / 40005 / 200010 / 10002.5 / 40005 / 200010 / 1000Typical Extinction Ratio(K1/K2)100300300100300300100300400100300400Ordering InformationPartNumberGS57500GS57501GS57502GS57503GS57504GS57505GS57506GS57507SubstrateMaterialKRS-5CaF 2BaF 2ZnSeKRS-5CaF 2BaF 2ZnSeMounting RingDia. (mm)2525252550505050Parallelism(arc minutes)53335333Flatness (fringesper inch@633 nm)42224222www.specac.com51