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首页> 外文期刊>Physica, B. Condensed Matter >Optical and luminescence studies of Pr~(3+) and Er~(3+) doped different phosphate glasses
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Optical and luminescence studies of Pr~(3+) and Er~(3+) doped different phosphate glasses

机译：Pr〜（3+）和Er〜（3+）掺杂的不同磷酸盐玻璃的光学和发光研究

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Optical absorption and emission spectra of Pr~(3+) and Er~(3+) doped different chlorophosphate glasses have been studied. Optical properties of these two rare earth ions were characterized through optical absorption and emission spectra using Judd–Ofelt theory. Judd–Ofelt intensity parameters Ω_λ (λ=2, 4 and 6) are calculated for both the ions from their absorption spectra, which in turn used to derive the radiative properties such as radiative transition probabilities (A_T), radiative lifetimes (t_R), branching ratios (b) and integrated absorption cross-sections (∑). An attempt has been made to discuss structural changes considering the hypersensitive transitions and covalency of rare earth oxygen (RE-O) bonds for the present glass systems. From emission spectra, peak emission cross-sections (σ_P) are obtained for the observed emission bands of Pr~(3+) and Er~(3+) ions in all these chlorophosphate glasses. Variation of peak emission cross-sections with the glass matrix has been studied.
机译：研究了Pr〜（3+）和Er〜（3+）掺杂的不同氯磷酸盐玻璃的光吸收和发射光谱。使用Judd-Ofelt理论通过吸收和发射光谱对这两种稀土离子的光学性质进行了表征。根据两个离子的吸收光谱计算出Judd–Ofelt强度参数Ω_λ（λ= 2、4和6），这反过来又用于导出辐射特性，例如辐射跃迁几率（A_T），辐射寿命（t_R），支化比（b）和吸收截面（∑）。已经尝试讨论考虑到本玻璃系统的稀土氧（RE-O）键的超敏转变和共价性的结构变化。从发射光谱中，获得了所有这些氯磷酸盐玻璃中Pr〜（3+）和Er〜（3+）离子的观察到的发射带的峰发射截面（σ_P）。研究了峰发射截面随玻璃基质的变化。

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