Spectroscopic Investigation Of Pr3+ Fluorapatite Crystals
Abbreviated Journal Title
J. Phys. Chem. Solids
inorganic compounds; luminescence; crystal fields; optical properties; SITE-SELECTIVE SPECTROSCOPY; ENERGY-LEVELS; FIELD ANALYSIS; LASER; SPECTRA; IONS; FLUOROPHOSPHATE; LUMINESCENCE; ABSORPTION; APATITES; Chemistry, Multidisciplinary; Physics, Condensed Matter
Spectroscopic data is presented for Pr3+-doped calcium fluorapatite (Ca-5(PO4)(3)F) and strontium fluorapatite (Sr-5(PO4)(3)F) crystals which were studied using polarized absorption and laser-induced fluorescence as optical probes. Complete tabulation of experimental energy levels is provided for strontium fluorapatite, where only one Pr3+ site, having C-s symmetry, is measurable. In calcium fluorapatite, at least three Pr3+ sites of appreciable concentration are evident, though the majority site is demonstrated to show similarity to the site in the strontium fluorapatite host. An unusually high crystal field splitting of Pr3+ energy levels is exhibited in both hosts. Intersite energy transfer, upconversion and cross relaxation are discussed for Pr3+ in the calcium fluorapatite crystal.
Journal of Physics and Chemistry of Solids
"Spectroscopic Investigation Of Pr3+ Fluorapatite Crystals" (1996). Faculty Bibliography 1990s. 3067.