分析化学(期刊)
猝灭(荧光)
拉曼光谱
谱线
材料科学
拉曼散射
原子物理学
荧光
散射
物理
化学
光学
天文
色谱法
作者
Yu Chen,Shixun Dai,Gang Zhang,Junjie Zhang,Lili Hu,Zhonghong Jiang
标识
DOI:10.1088/0256-307x/22/11/055
摘要
Three kinds of Er3+-doped tellurite glasses with different hydroxyl groups are prepared by the conventional melt-quenching method. Infrared spectra are measured to estimate the exact content of OH− groups in samples. The maximum phonon energy in glasses are obtained by measuring the Raman scattering spectra. The strength parameters Ωt (t = 2,4,6) for all the samples are calculated and compared. The nonradiative decay rate of the Er3+ 4I13/2→4I15/2 transition are calculated for the glass samples with different phonon energy and OH− group contents. Finally, the effect of OH− groups on fluorescence decay rate of Er3+ is analysed, the constant KOH−Er of TWN, TZPL and TZL glasses are calculated to be 9.2×10−19 cm4s−1, 5.9×10−19 cm4s−1, and 3.5×10−19 cm4s−1, respectively.
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