Judd-Ofelt光谱分析理论

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摘要：对Judd-Ofelt光谱分析理论(J-O理论)的发展和应用进行了综述。J-O理论用于分析固体中的稀土离子的吸收、发射光谱，可计算它们的跃迁几率、谱线强度、能级寿命、发射截面等。在J-O理论中考虑J混合后，可使理论和实验结果更好地吻合。采用改进的J-O理论，可较好地对Pr³⁺光谱进行分析。由TPM方法，可用非极化光透射光谱来分析各向异性晶体的光谱性质，并且对样品的加工无特殊定向要求。对于重叠吸收光谱带，拟合J-O参数时可以近似为一个带进行处理。利用荧光寿命也可对J-O参数进行计算。

关键词：Judd-Ofelt光谱理论;光谱参数;稀土离子

Abstract：In this article, the development and application of Judd-Ofelt spectral theory(J-O theory) was reviewed briefly. J-O theory was used to analyze the absorption and emission spectra of rare earth ions in solids, and compute their transition probabilities, line strengths, energy lifetimes, emission cross sections, and so on. When J-mixing was considered in J-O theory, the theoretical and experimental results were more consistent. The spectra of Pr³⁺ can be analyzed relatively accurately with modified J-O theory. The spectral properties of anisotropic crystal can be analyzed from the unpolarized-light transmission spectrum of a quadratic sample without special-orientation processing. The overlapped absorption bands can be treated as one band approximatively. The J-O parameters can also be calculated with fluorescence lifetimes.

Key words：Judd-Ofelt spectral theory;Spectral parameters;Rare earth ion

收稿日期: 2003-11-16 修订日期: 2004-03-18

中图分类号:

O433.4，O482.3

通讯作者: 张庆礼

引用本文:

张庆礼¹，何伟²，孙敦陆¹，王爱华¹，殷绍唐¹ . Judd-Ofelt光谱分析理论[J]. 光谱学与光谱分析, 2005, 25(03): 329-333.
ZHANG Qing-li¹, HE Wei², SUN Duen-lu¹，WANG Ai-hua¹, YIN Shao-tang¹ . Judd-Ofelt Spectral Theory . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(03): 329-333.

链接本文:

https://www.gpxygpfx.com/CN/Y2005/V25/I03/329