1. Upconversion luminescence in Yb3+-doped yttrium aluminum garnets
- Author
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Xu, Xiaodong, Zhao, Zhiwei, Song, Pingxin, Jiang, Benxue, Zhou, Guoqing, Xu, Jun, Deng, Peizhen, Bourdet, Gilbert, Christophe Chanteloup, Jean, Zou, Ji-Ping, and Fulop, Annabelle
- Subjects
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YTTRIUM , *LUMINESCENCE , *RARE earth metals , *SPECTRUM analysis - Abstract
Abstract: In this paper, we present results on upconversion luminescence performed on Yb3+-doped yttrium aluminum garnets under 940nm excitation. The upconversion luminescence was ascribed to Yb3+ cooperative luminescence and the presence of rare earth impurity ions. The cooperative luminescence spectra as a function of Yb concentration were measured and the emission intensity variation with Yb concentration was discussed. Yb3+ energy migration quenched the cooperative luminescence of Yb:YAG crystals with doping level over 15at%. [Copyright &y& Elsevier]
- Published
- 2005
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