Absorption spectrum analysis and crystal-field calculation of Nd3+ doped in GdTaO4 crystal

被引：3
|
作者：
Gao Jin-Yun [1 ]
Zhang Qing-Li [1 ]
Wang Xiao-Fei [1 ]
Liu Wen-Peng [1 ]
Sun Gui-Hua [1 ]
Sun Dun-Lu [1 ]
Yin Shao-Tang [1 ]
机构：
[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
来源：
ACTA PHYSICA SINICA | 2015年 / 64卷 / 12期
关键词：
Nd3+:GdTaO4 crystal; absorption spectrum; crystal-field calculation; energy levels fitting; SINGLE-CRYSTALS; ENERGY-LEVELS; GROWTH; EU3+; LSO;
D O I：
10.7498/aps.64.124209
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper, Nd3+-doped GdTaO4 laser crystal for scintillator with high density is successfully grown by the Czochralski method, and the absorption spectra are measured along the a, b and c directions in a wide wavelength range of 260-2000 nm. The experimental energy levels for Nd3+ are analyzed and identified. The free-ions and crystal-field parameters are fitted by the experimental energy levels with the root mean square deviation of 12.66 cm(-1), and 102 Stark energy levels for Nd3+ in GdTaO4 host crystal are assigned. The fitting results of free-ions and crystal-field parameters are compared with those already reported for Nd3+ : GdxLu1-xTaO4 (x = 0.85) crystal. It indicates that the fitting results of Stark energy levels agree well with the experimental spectra.
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页数：6
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