Especially, the calcium fluoride (CaF 2) crystal with an optically isotropic fluorite structure has attracted much more attention due to its high transparency in a broad wavelength range, high chemical ...

Yb: CaF2 is a new laser crystal which is formed by doping Yb into CaF2. The main emission peak are reported to be at 1033 nm and 1050 nm with the emission linewidth of 70 nm. Because of the absence of ...