Compositional dependence of Judd-Ofelt parameters in silicate, borate, and phosphate glasses
- Kyushu Univ., Fukuoka (Japan)
Judd-Ofelt parameters {Omega}{sub t} with t = 2, 4, 6 for the rare-earth ions Pr{sup 3+}, Nd{sup 3+}, Sm{sup 3+}, Tb{sup 3+}, Dy{sup 3+}, Ho{sup 3+}, Er{sup 3+}, and Tm{sup 3+} in alkali and/or alkaline-earth silicate, borate, and phosphate glasses have been determined. The variations of {Omega}{sub t} with the number of 4{line_integral} electrons of the rare-earth ions are demonstrated, and factors affecting the Judd-Ofelt parameters {Omega}{sub 6} are discussed. The intensity parameter {Omega}{sub 6} depends on the ionic packing ratio of the glass host by changing modifier type in silicate and borate glasses, and it is independent of that in a series of borate glasses as a function of modifier content and phosphate glasses. The peak wavenumber of the transitions whose intensities are determined mainly by the {Omega}{sub 6} < {parallel}U{sup (6)}{parallel}>{sup 2} term-where <{parallel}U{sup (6)}{parallel}> is one of the reduced matrix elements--shift systematically with the values of {Omega}{sub 6} for all the rare-earth ions.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 69614
- Journal Information:
- Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 5 Vol. 78; ISSN 0002-7820; ISSN JACTAW
- Country of Publication:
- United States
- Language:
- English
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