Optical lines in europium-terbium double activated calcium tungstate phosphor

The Letter is devoted to the problem of the optical anisotropy of the rare-earth ions occupying low-symmetry positions in crystals. The crystal field multiplets arising from LSJ terms of Eu3+ and Tb3+ ions in the crystal field of calcium tungstate scheelite (CaWO4) are analyzed with regard to the experimental data on the low temperature photoluminescence and cathodo-luminescence spectra. The selection rules as well as an angular (polarization) dependence of the two-photon absorption are discussed. (C) 2004 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2004-09
Language
ENG
Keywords

RARE-EARTH IONS; 2-PHOTON ABSORPTION; LUMINESCENCE; CAWO4; SPECTRA; CDWO4

Citation

PHYSICS LETTERS A, v.330, no.3-4, pp.291 - 298

ISSN
0375-9601
DOI
10.1016/j.physleta.2004.07.071
URI
http://hdl.handle.net/10203/2468
Appears in Collection
MS-Journal Papers(저널논문)
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