Optical spectra of octahedral cubic and trigonal Yb3+ impurity centers in KMgF3 and KZnF3 crystals

Abstract

Groups of lines corresponding to octahedral cubic and trigonal impurity centers have been isolated in complex many-center luminescence and excitation spectra of Yb 3+ -doped KMgF 3 and KZnF 3 crystals. The crystal-field potentials derived from the spectra are in good agreement with those of similar centers in CsCaF 3 :Yb 3+ crystal studied earlier.