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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Spectroscopic parameters of Nd3+ ion in phosphate glasses
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Spectroscopic parameters of Nd3+ ion in phosphate glasses

机译：磷酸盐玻璃中Nd3 +离子的光谱参数

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The optical absorption spectrum of Nd3+ ions in phosphate glasses of varying matrix environments has been recorded in the ultra violet, visible and near infrared region. From the absorption spectra, various spectroscopic parameters such as Slater-Condon (F-2, F-4 and F-6), spin-orbit (xi(4f)). Racab (E-1, E-2 and E-3), nephelauxetic (beta), bonding (delta) and Judd-Ofelt (J-O) (Omega(2), Omega(4) and Omega(6)) intensity parameters were evaluated. Electric dipole S-ed and magnetic dipole (S-md) line strengths were evaluated with the help of J-O intensity parameters. The observed and calculated oscillator strengths (f) are found to be in reasonable agreement with one another. Using J-O parameters and calculated matrix U-(lambda) radiative transition probabilities (A), total radiative transition probability (A(T)), radiative lifetime (tau(RAD)) branching ratios (beta(R)) and integrated absorption cross-sections for stimulated emission (sigma(a)) between the metastable F-4(3/2) and terminal (4)J(J) levels were calculated. The analysis shows that the F-4(3/2) --> I-4(11/2) has the potential for a laser transition in the four glasses studied. The results of these investigations have been confirmed by recording the fluorescence spectrum corresponding to the F-4(3/2) --> I-4(11/2) transition. (C) 1997 Elsevier Science B.V.
机译：Nd3 +离子在不同基质环境的磷酸盐玻璃中的光吸收光谱已记录在紫外线，可见光和近红外区域。从吸收光谱中，可以找到各种光谱参数，例如Slater-Condon（F-2，F-4和F-6），自旋轨道（xi（4f））。拉卡布（E-1，E-2和E-3），肾上腺素（β），结合（delta）和贾德-奥费尔特（JO）（Omega（2），Omega（4）和Omega（6））的强度参数为评估。借助J-O强度参数评估了电偶极S-ed和磁偶极（S-md）线强度。发现观察到的和计算出的振荡器强度（f）彼此合理地一致。使用JO参数和计算出的矩阵U-（λ）辐射跃迁概率（A），总辐射跃迁概率（A（T）），辐射寿命（tau（RAD））分支比（beta（R））和积分吸收交叉计算了亚稳态F-4（3/2）与末端（4）J（J）的激发发射截面（sigma（a））。分析表明，在所研究的四种玻璃中，F-4（3/2）-> I-4（11/2）具有激光跃迁的潜力。通过记录与F-4（3/2）-> I-4（11/2）跃迁相对应的荧光光谱，可以证实这些研究的结果。 （C）1997年Elsevier Science B.V.

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