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 Yb3+-doped KMgF3 and KZnF3 crystals. The crystal-field potentials derived from the spectra are in good agreement with those of similar centers in CsCaF3:Yb3+ crystal studied earlier. © 1998 American Institute of Physics.