硅酸盐学报

Sm3+:YAl3(BO3)4晶体的生长及其光谱特性

作者：李静王继扬韩树娟郭永解王永政

关键词：助熔剂法光学性质 Judd–Offelt理论热导率

分类号：

出版年,卷(期):页码：2012,40(4):601-605

DOI：

摘要：

摘要：采用助熔剂法生长高质量的Sm³⁺:YAl₃(BO₃)₄晶体，并通过吸收光谱、荧光光谱对它的光谱特性进行表征，采用Judd–Offelt理论分析了该晶体的光谱参数。结果表明：Sm:YAl₃(BO₃)₄晶体的Ω_t(t=2，4，6)参数分别为Ω₂=0.058×10^–²⁰，Ω₄=1.28×10^–²⁰，Ω₆=1.06×10^–²⁰。⁶H_7/2能级的辐射寿命为 520.2μs。热学性能测试表明：Sm:YAl₃(BO₃)₄晶体具有较高的热导率，沿c轴方向是5.30W/(m?K)。

stract: A Sm:YAl₃(BO₃)₄ single crystal with a superior optical quality was grown by a flux method. The absorption and fluorescence spectra of the Sm³⁺ion in the YAl₃(BO₃)₄ crystal were investigated. The spectral parameters were filted using the Judd–Offelt theory. The intensity parameters Ω_t(t=2, 4, and 6) were calculated to be 0.058×10^–20(Ω₂), 1.28×10^–20(Ω₄), and 1.06×10^–20(Ω₆) respectively. The radiative lifetime at the ⁶H_7/2 level was 520.2μs. The calculated thermal conductivity was 5.30W/(m?K) along the c-direction.

基金项目：

国家自然科学基金(50872066)；山东大学自主创新基金(IIF- SDU)；山东省自然科学基金(ZR2011EMM010)资助项目。

作者简介：

第一作者：李静(1971—)，女，副教授。

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