Refractive Index of CaF2, Calcium Fluoride

Calcium fluoride is the inorganic compound with the formula CaF2. It is commonly used as a window material for both infrared and ultraviolet wavelengths, since it is transparent in these regions.

For a typical sample of CaF2 the refractive index and extinction coefficient at 632.8 nm are 1.433 and 0.000. Below are files of complete refractive index and extinction coefficients. If the file is not available for download, you can request our proprietary file by clicking "Request".

  • Tab-delimited data file for unrestricted use
Wavelength (nm)

Refractive Index Reference - Sopra Material Database

Wikipedia: Calcium fluoride
Sopra Material Database

No guarantee of accuracy - use at your own risk.