Resonant electron–phonon coupling of Yb3+ in YAG

Abstract An analysis of Yb3+ spectra in YAG in terms of the splitting of the zero-phonon lines in the case of near resonance between Stark levels and sharp peaks in the phonon spectrum is presented. The theoretical relations allow estimation of the position of the electronic level and vibronic coupling strength from the intensity ratio and spectral shifts. A new energy level scheme for the 2F5/2 Yb3+ multiplet in YAG is proposed.

[1]  Dahl,et al.  Davydov splitting of crystal-field excitations and magnetic phonon splitting in PrF3. , 1986, Physical Review Letters.

[2]  R. Buchanan,et al.  Energy Levels ofYb3+in Gallium and Aluminum Garnets. II. Calculations , 1967 .

[3]  J. Koningstein.  Energy levels and crystal-field calculations of trivalent ytterbium in yttrium aluminum garnet and yttrium gallium garnet , 1965 .

[4]  O. Malta.  The theory of vibronic transitions in rare earth compounds , 1995 .

[5]  V. Lupei,et al.  Resonance between electronic and vibronic levels of in yttrium aluminium garnet , 1997 .

[6]  R. Buchanan,et al.  Energy Levels of Yb 3 + in Gallium and Aluminum Garnets. I. Spectra , 1967 .

[7]  A. Meijerink,et al.  Spectral-line-broadening study of the trivalent lanthanide-ion series.II. The variation of the electron-phonon coupling strength through the series , 1997 .

[8]  Schaack,et al.  Crystal-field states of the Ce3+ ion in CeF3: A demonstration of vibronic interaction in ionic rare-earth compounds. , 1986, Physical review. B, Condensed matter.

[9]  A. Hofmeister,et al.  Infrared spectroscopy of yttrium aluminum, yttrium gallium, and yttrium iron garnets , 1992 .

[10]  A. Meijerink,et al.  Spectral-line-broadening study of the trivalent lanthanide-ion series. I. Line broadening as a probe of the electron-phonon coupling strength , 1997 .

[11]  L. D. DeLoach,et al.  Vibrational structure in the emission spectra of Yb3+-doped apatite crystals , 1994 .

[12]  D. Wood.  Energy Levels of Yb3+ in Garnets , 1963 .

[13]  P. Caro,et al.  Vibronic optical transitions in inorganic and organic rare earth materials , 1985 .

[14]  V. F. Zolin,et al.  Resonant vibronic effect in the luminescence spectra of europium compounds , 1996, Other Conferences.

[15]  Kathleen I. Schaffers,et al.  Crystal growth, frequency doubling, and infrared laser performance of Yb/sup 3+/:BaCaBO/sub 3/F , 1996 .

[16]  V. V. Ovsyankin,et al.  Electron-vibrational shift of f-levels in CaF2 and SrF2 crystals with Tm2+ ions , 1997 .