Fluorescence Spectra, Term Assignments, and Crystal Field Splittings of Rare Earth Activated Phosphors

Abstract

The visible fluorescent emissions, excited by 280-mμ radiation, of SrS phosphors, singly activated with rare earth ions, have been determined. These spectra are correlated with atomic term signature designations and with spectra of rare earth salt compounds. Crystal field splittings of certain energy levels are observed.