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Calcium Fluoride (CaF) Windows

<ul> <li>Low Absorption, High Transmission UV Grade Calcium Fluoride</li> <li>Ideal for Applications Ranging from 250nm thru 7μm</li> <li>Low Index of Refraction</li> </ul> <p>Calcium fluoride is often used in spectroscopic windows and lenses due to its high transmission from 250nm to 7μm. Its low absorption and high damage threshold makes it a popular choice for excimer laser optics. Calcium fluoride's low index or refraction allows it to be used without an anti-reflective coating. The Knoop hardness of calcium fluoride is 158.3. TECHSPEC® Calcium Fluoride (CaF<sub>2</sub>) Windows manufactured from vacuum UV grade calcium fluoride are commonly found in cryogenically cooled thermal imaging systems. </p>