Calcium Fluoride (CaF2) Viewports
Calcium Fluoride provides extended transmission from the vacuum ultraviolet (VUV) into the infrared range. Calcium fluoride features low absorption, a high laser damage threshold, and good moisture and chemical resistance. Calcium fluoride is birefringent and has a low index of refraction.
ANCORP offers zero-length calcium fluoride viewports with ConFlat (CF) flanges for use in ultra-high vacuum (UHV) applications.