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Energy exchange processes in Er~(3+)-doped fluorozirconate glasses

机译:掺Er〜(3+)氟锆酸盐玻璃的能量交换过程

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摘要

A comprehensive study has been conducted on the effects of erbium dopant concentration on the fluorescence properties of the three lowest energy levels which are involved in infrared emission in Er~(3+)-doped fluorozirconate glass compositions. Pulsed pump radiation at wavelengths of 800 nm, 980 nm and 1.5 #mu#m was used to measure fluorescence rise and decay waveforms for Er~(3+) concentrations between 0.2 and 18 mol%. A rate-equation model has been developed for the relevant levels and the fitting of this model to the experimental results has enabled the contribution of various ion-ion energy exchange processes to be identified and quantified. These processes determine, in part, the population dynamics, especially for the larger dopant concentrations used.
机译:已对掺Er浓度对掺Er(3+)的氟锆酸盐玻璃组合物中红外发射所涉及的三个最低能级的荧光性质的影响进行了全面研究。使用波长为800 nm,980 nm和1.5#μm的脉冲泵浦辐射来测量Er〜(3+)浓度在0.2和18 mol%之间的荧光上升和衰减波形。已经为相关水平开发了速率方程模型,并且该模型与实验结果的拟合使得能够识别和量化各种离子-离子能量交换过程的贡献。这些过程部分决定了种群动态,特别是对于所使用的较大掺杂剂浓度而言。

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