期刊
JOURNAL OF LUMINESCENCE
卷 97, 期 1, 页码 51-54出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-2313(01)00426-4
关键词
Yb : YAG; concentration quenching; fluorescence lifetime; Yb2+ ion; color center; lattice distortion
类别
The concentration quenching in Yb:YAG crystals with high Yb3+ doping level was demonstrated. and studied as well. The color center and lattice distortion which originated from Yb2+ are the main reasons for producing the concentration quenching in unannealed Yb:YAG crystals. and after annealing at 1600degreesC in oxygen atmosphere for 24 h. Yb2+ vanished. Trace impurity ions are also responsible for this phenomenon. (C) 2002 Elsevier Science B.V. All rights reserved.
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