SpectroscopyandEnergyTransferinYb3+andTm3+Co-dopedGd3Ga5O12Crystal

被引:1
作者
陈贵堂 [1 ,2 ]
周涵 [1 ,2 ]
吕万聪 [1 ,2 ]
王燕 [1 ]
游振宇 [1 ]
李坚富 [1 ]
朱昭捷 [1 ]
涂朝阳 [1 ]
机构
[1] Key Laboratory of Materials Chemistry and Physics,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences
[2] Graduate School of the Chinese Academy of Sciences
关键词
Yb3+/Tm3+ co-doped Gd3Ga5O12 crystal; Judd-Ofelt(J-O) theory; spectrum characteristics; energy transfer;
D O I
10.14102/j.cnki.0254-5861.2010.03.005
中图分类号
O614.3 [第Ⅲ族金属元素及其化合物];
学科分类号
070301 ; 081704 ;
摘要
Yb3+/Tm3+ co-doped Gd3Ga5O12 single crystal with a dimension of Φ30mm×20mm was grown successfully by Czochralski method.The absorption spectrum was recorded at room temperature and used to calculate the absorption cross-section.Based on the Judd-Ofelt(J-O) theory,we obtained the three intensity parameters and spectral parameters of this crystal,such as the line strengths,oscillator strengths,radiative probabilities and radiative lifetimes as well as the fluorescent branching ratios.Room temperature fluorescence spectra and luminescence decay curves were recorded.The energy transfer between Yb3+-Tm3+ was observed and the mechanism was discussed.The stimulated emission cross-section of the 3F4→3H6 transition was calculated by the Füchtbauer-Ladenburg(F-L) equation.The potential laser gains for this transition were also investigated.This crystal is promising as a tunable infrared laser crystal at 2.0 μm.
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页码:449 / 458
页数:10
相关论文
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