Product documentation
Description
Calcium fluoride (CaF2) is often used in spectroscopic windows and lenses due to its high transmission from 250nm to 7?m. 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. CaF2 Window is manufactured from vacuum UV grade calcium fluoride are commonly found in cryogenically cooled thermal imaging systems.