| 光谱学与光谱分析 |
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| Crystal Growth and Spectral Parameter Computation of Yb:YAG |
| ZHANG Qing-li, XIAO Jing-zhong, SUN Dun-lu, WANG Ai-hua, YIN Shao-tang |
| Crystal Lab, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031，China |
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Abstract In this article, a good-quality crystal Yb:YAG was grown by pull method, and its absorption spectrum of 200-3 000 nm was measured at room temperature. Its absorption of 200-300 nm is from the host YAG, and there ｅｘｉｓｔｓ only the characteristic absorption of Yb3+ in the range of 390-3 000 nm. Judd-Ofelt theory computation indicates that the absorption and emission oscillator strengthｓ of electric dipole of (24 at%)Yb:YAG are 3.58×10-6 and 4.77×10-6, ｒｅｓｐｅｃｔｉｖｅｌｙ，and the absorption and emission transition probabilities are 879 and 1 171／s ｒｅｓｐｅｃｔｉｖｅｌｙ. As for magnetic dipole, the absorption and emission oscillator strengths are 3.32×10-7 and 4.43×10-7 ｒｅｓｐｅｃｔｉｖｅｌｙ, and the absorption and emission transition probabilities are 82 and 109／s ｒｅｓｐｅｃｔｉｖｅｌｙ. The lifetime of the energy level 2F5／2 is 781 μs.
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Received: 2002-12-16
Accepted: 2003-06-06
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Corresponding Authors:
ZHANG Qing-li
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| Cite this article: |
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ZHANG Qing-li,XIAO Jing-zhong,SUN Dun-lu, et al. Crystal Growth and Spectral Parameter Computation of Yb:YAG [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(10): 1157-1160.
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http://www.gpxygpfx.com/EN/Y2004/V24/I10/1157 |
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