Title :
Fluorescence analysis of chromium-doped forsterite (Mg2SiO4)
Author :
Moncorge, Richard ; Cormier, G. ; Simkin, D.J. ; Capobianco, J.A.
Author_Institution :
Lyon Univ., Villeurbanne, France
fDate :
1/1/1991 12:00:00 AM
Abstract :
The polarized absorption spectra, emission spectra, and fluorescence dynamics of Cr:forsterite are presented and analyzed in detail. At least three different kinds of emitting centers are identified by time-resolved spectroscopy. These correspond to two sorts of octahedrally coordinated Cr3+ ions and one Cr4+ with various possible environments. The infrared laser active center is identified with the latter species, and its infrared absorption and emission properties are attributed to excited state-ground state optical transitions without any thermalization process into the excited state
Keywords :
chromium; infrared spectra of inorganic solids; luminescence of inorganic solids; magnesium compounds; time resolved spectra; visible spectra of inorganic solids; Cr:forsterite; Cr3+; Cr4+; IR absorption; IR emission; IR laser active centre; Mg2SiO4:Cr; emission spectra; emitting centers; excited state-ground state optical transitions; fluorescence dynamics; octahedrally coordinated Cr3+ ions; polarized absorption spectra; time-resolved spectroscopy; Chemistry; Chromium; Electromagnetic wave absorption; Fluorescence; Laser excitation; Laser transitions; Particle beam optics; Polarization; Spectroscopy; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
