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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Spectroscopic and photoluminescence properties of Dy~(3+)-doped lead tungsten tellurite glasses for laser materials
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Spectroscopic and photoluminescence properties of Dy~(3+)-doped lead tungsten tellurite glasses for laser materials

机译：掺杂Dy〜（3+）的铅钨碲酸盐玻璃的光谱和光致发光性能

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摘要

Lead tungsten tellurite (LIT) glasses doped with different Dy~(3+) ion concentrations have been prepared and characterized through optical absorption, photoluminescence and decay measurements. The glassy nature of the LTT host has been confirmed through the XRD measurements. The three phenomelogical intensity parameters Ω_λ (λ = 2,4,6) have been determined from the absorption spectral intensities using the Judd-Ofelt (J-O) theory. The hypersensitivity of ~6H_(15/2) ->~6F_(11/2) transition based on the magnitude of Ω_2 parameter has also been discussed. By using the J-O intensity parameters several radiative properties such as spontaneous transition probabilities (Α_R), fluorescence branching ratios (β_R) and radiative lifetimes (Τ_R) have been determined. The effect of Dy~(3+) ion concentration on the emission intensities of ~4F_(9/2) ->~6H_J'(J' = 15/2,13/2,11/2 and 9/2) transitions has also been reported.
机译：制备了掺有不同Dy〜（3+）离子浓度的碲化钨碲玻璃（​​LIT），并通过光吸收，光致发光和衰减测量对其进行了表征。 LTT宿主的玻璃状性质已通过XRD测量得到证实。使用Judd-Ofelt（J-O）理论从吸收光谱强度确定了三个表观强度参数Ω_λ（λ= 2,4,6）。还讨论了基于Ω_2参数的〜6H_（15/2）->〜6F_（11/2）跃迁的超敏性。通过使用J-O强度参数，已经确定了几种辐射性质，例如自发跃迁概率（Α_R），荧光分支比（β_R）和辐射寿命（Τ_R）。 Dy〜（3+）离子浓度对〜4F_（9/2）->〜6H_J'（J'= 15 / 2,13 / 2,11 / 2和9/2）跃迁的发射强度的影响具有也有报道。

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