Suited for such applications as IR spectroscopy, TECHSPEC Barium Fluoride (BaF2) Windows offer wide broadband transmission extending from deep UV to LWIR (200 nm to 14 μm). Barium Fluoride's 1.48 index of refraction promotes transmission without requiring anti-reflection (AR) coatings. Supporting use up to 800°C in dry environments, 5–50 mm dia windows are made from optical fluoride resistant to high energy radiation and have 82 Knoop hardness.
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