Open AccessSITE SYMMETRY DETERMINATION AND SELECTIVE EXCITATION SPECTROSCOPY OF Eu3+:ThO2 CRYSTAL
Author(s) -
Min Yin,
J.C. Krupa
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.1859
Subject(s) - excitation , crystal (programming language) , ion , materials science , spectroscopy , atomic physics , symmetry (geometry) , spectral line , laser , fluorescence , emission spectrum , flux (metallurgy) , molecular physics , analytical chemistry (journal) , physics , optics , chemistry , geometry , mathematics , chromatography , quantum mechanics , astronomy , computer science , programming language , metallurgy
The emission spectra, excitation spectra and fluorescence decay curves of Eu3+:ThO2 are reported and analyzed. The Eu3+:ThO2 crystal was grown by the flux technique. Using selective dye laser exci tation at 12K and selection rules, site symmetries of Eu3+ ions in T hO2 are determined as Oh and C3v. Their crystal field levels and lifetimes were measured and tabulated. The dependence of energ y transfer and energy level position on temperature are also discussed.