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Short-wavelength emission analysis in Dy:ZBLAN glasses

机译：Dy：ZBLAN眼镜的短波发射分析

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摘要

In this work we examine short-wavelength (blue, yellow and red) emission properties of dysprosium activated fluorozirconate ZBLAN glass. On the basis of the measured broad band absorption spectrum the intensity parameters Ω_i were calculated using Judd-Ofelt formalism, yielding values of transition probabilities and radiative lifetimes. The basic spectroscopic characterization of Dy:ZBLAN was also performed, including visible emission and fluorescence decay measurements under pulsed, direct and two-photon up-conversion excitation. The theoretically predicted properties, specifically concerning the fluorescence lifetimes, were found to be in a rough agreement with experimentally determined values which was improved by isolation of magnetic dipole and impurity contributions to absorption spectrum.
机译：在这项工作中，我们研究了activated活化的氟锆酸ZBLAN玻璃的短波（蓝色，黄色和红色）发射特性。根据测得的宽带吸收光谱，使用Judd-Ofelt形式主义，转换概率值和辐射寿命计算强度参数Ω_i。还进行了Dy：ZBLAN的基本光谱表征，包括在脉冲，直接和双光子上转换激发下的可见光发射和荧光衰减测量。发现理论上预测的性质，特别是关于荧光寿命的性质，与实验确定的值大致吻合，该实验确定的值通过隔离磁偶极子和杂质对吸收光谱的贡献而得到改善。

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