VUV 5d-4f luminescence of Gd3+ and Lu3+ ions in the CaF2 host |
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Authors: | V. N. Makhov S. Kh. Batygov L. N. Dmitruk M. Kirm S. Vielhauer G. Stryganyuk |
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Affiliation: | (1) Lebedev Physical Institute, Russian Academy of Sciences, Leninskiĭ pr. 53, Moscow, 119991, Russia;(2) Institute of Physics, University of Tartu, Tartu, 51014, Estonia;(3) General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia;(4) Hamburger Synchrotronstrahlungslabor HASYLAB, Deutsches Elektronensynchrotron DESY, Hamburg, 22607, Germany |
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Abstract: | The first observation and characterization of Lu3+ 4f 135d-4f 14 luminescence from the CaF2: Lu3+ crystal are reported, and the multisite structure in the spectra of Ce3+, Gd3+, and Lu3+ ions in the CaF2 host is analyzed with the high-resolution VUV spectroscopy technique using synchrotron radiation. It is shown that vibronic structure in the emission and excitation spectra of interconfigurational transitions in Gd3+ and Lu3+ ions doped into CaF2 differs from that observed for Ce3+ ions entering mainly at the tetragonal (C 4v ) sites. However, the exact types of sites in which the Gd3+ and Lu3+ ions reside in a CaF2 lattice cannot be identified using only the obtained experimental spectroscopid data. The text was submitted by the authors in English. |
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