Abstract
Abstract The optical absorption and luminescence spectra of Cr 3+ in Ca 3 Al 2 (SiO 4 ) 3 natural garnet (Grossular) measured at room and LHeT were reported the first time in Mazurak [Opt. Mater., this issue]. The spectra have been used for determined energies of R 2 , R 1 , ZPL, vibrational modes and 2 E, 4 T 2 , 4 T 1 levels. We have extended our investigations, the spectra of Cr 3+ in Ca 3 Al 2 (SiO 4 ) 3 are analyzed using a C 3i crystal-field Hamiltonian. The energy levels and the crystal-field parameters B nm for Cr 3+ ion in Ca 3 Al 2 (SiO 4 ) 3 single crystal, including spin-orbit and ligand-field interactions, have been calculated. The resulting crystal-field parameters B nm represent very well the crystal-field interactions of Cr 3+ in Grossular Ca 3 Al 2 (SiO 4 ) 3 .
Published Version
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