ФТТ, 2008, том 50, выпуск 9

 Содержание  Предыдущая статья  Следующая статья  Поиск  

VUV 5d-4f luminescence of Gd3+ and Lu3+ ions in the CaF2 host

V.N.Makhov\kern1pt*,**, S.Kh.Batygov\kern1pt***, L.N.Dmitruk\kern1pt***, M.Kirm\kern1pt**, S.Vielhauer\kern1pt**, G.Stryganyuk\kern1pt****

* P.N. Lebedev Physical Institute, Russian Academy of Sciences,
119991 Moscow, Russia
** Institute of Physics, University of Tartu,
51014 Tartu, Estonia
*** General Physics Institute, Russian Academy of Sciences,
119991 Moscow, Russia
**** Hamburger Synchrotronstrahlungslabor HASYLAB, Deutsches Elektronensynchrotron
DESY, 22607 Hamburg, Germany
E-mail: makhov@sci.lebedev.ru

First observation and characterization of Lu3+ 4f135d-4f14 luminescence from the CaF2 : Lu3+ crystal are reported, and the multi-site 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 was 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 (C4v) sites. However, the exact types of sites in which the Gd3+ and Lu3+ ions reside in the CaF2 lattice cannot be identified basing only on obtained experimental spectroscopic data. This work was supported by the RFBR Grant 05-02-1730, the Estonian Science Foundation Grant 6538 and the European Community Research Infrastructure Action within the FP6 Program through the Contract RII3-CT-2004-506008 (IA-SFS). PACS: 78.55.Hx, 71.70.Ch, 63.20.Kr, 78.47.+p

 PDF версия (436Kb)   Другие выпуски  Другие журналы   Помощь 
Copyright (C) 2008, Коллектив авторов  Разработано...  webmaster