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Proceedings Paper

Time-resolved fluorescence line-narrowing and lifetime studies of gel-derived Eu2O3-Al2O3-SiO2 systems
Author(s): Michael J. Lochhead; Kevin L. Bray
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Paper Abstract

Time-resolved, fluorescence line narrowing (FLN) spectra and fluorescence lifetimes are used to characterize local structure in Eu3+-doped silica gels. Co-doping with Al3+ is shown to have a significant effect on the local structure of the Eu3+ ion in the silica matrix. A pulsed dye laser was used to selectively excite subsets of ions contributing to the inhomogeneously broadened 7FO$ARLR5DO transition. Resultant line-narrowed fluorescence spectra and lifetimes are interpreted in terms of site symmetry, energy transfer, Eu3+ ion clustering, and residual hydroxyl groups.

Paper Details

Date Published: 13 October 1994
PDF: 12 pages
Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); doi: 10.1117/12.189005
Show Author Affiliations
Michael J. Lochhead, Univ. of Wisconsin/Madison (United States)
Kevin L. Bray, Univ. of Wisconsin/Madison (United States)


Published in SPIE Proceedings Vol. 2288:
Sol-Gel Optics III
John D. Mackenzie, Editor(s)

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