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Proceedings Paper

Efficient visible up-conversion emission in Pr3+- and Er3+-doped aluminum fluorophospate glasses
Author(s): Victor K. Tikhomirov; Raffaella Rolli; Maurizio Montagna; Maurizio Ferrari; Animesh Jha
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Paper Abstract

Intense upconversion of yellow-to-blue, in Pr3+- doped, and green-to-blue in Er3+-doped aluminum fluoride glasses is reported. Pulsed excitations inside the 3H4 yields 1D2 absorption band of Pr3+ results in blue emission which is ascribed to the 3P0 yields 3H4 transition. We found that the temporal evolution of the upconverted fluorescence is characterized by rise and decay times depending on Pr3+ concentration. The upconversion mechanism is a two step process due to the energy transfer involving a pair of Pr3+ ions. The data indicate a high solubility of the Pr3+ ions without clustering at the doping level between 0.1 - 1% mol Pr3+. Measurements performed in Er3+ doped glasses indicate a good quantum yield of the upconversion emission confirming the high solubility of Er3+ ions in the aluminum fluoride glasses.

Paper Details

Date Published: 13 April 2000
PDF: 9 pages
Proc. SPIE 3942, Rare-Earth-Doped Materials and Devices IV, (13 April 2000); doi: 10.1117/12.382856
Show Author Affiliations
Victor K. Tikhomirov, Univ. of Leeds (United Kingdom)
Raffaella Rolli, INFM and Univ. degli Studi di Trento (Italy)
Maurizio Montagna, INFM and Univ. degli Studi di Trento (Italy)
Maurizio Ferrari, Ctr. Fisica Stati Aggregati (Italy)
Animesh Jha, Univ. of Leeds (United Kingdom)


Published in SPIE Proceedings Vol. 3942:
Rare-Earth-Doped Materials and Devices IV
Shibin Jiang, Editor(s)

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