Spectroscopic properties of stoichiometric NaTb(WO4)2 crystal as a gain medium for visible laser

被引：3
|
作者：
Qin, Haoran [1 ,2 ]
Chen, Yujin [1 ]
Gong, Xinghong [1 ]
Huang, Jianhua [1 ]
Lin, Yanfu [1 ]
Luo, Zundu [1 ]
Huang, Yidong [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2020年 / 217卷
基金：
中国国家自然科学基金;
关键词：
Spectroscopic property; NaTb(WO4)(2) crystal; Visible laser; SINGLE-CRYSTALS; ND3+ ION; OPERATION; GROWTH; ABSORPTION; TRANSITIONS; INTENSITIES; WAVELENGTH; GREEN; ER;
D O I：
10.1016/j.jlumin.2019.116793
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A stoichiometric NaTb(WO4)(2) crystal was grown by the Czochralski method and polarized spectroscopic properties of the crystal were investigated at room temperature. The peak absorption cross-sections at 487 nm of the crystal, corresponding to the F-7(6)-> D-5(4) transition of Tb3+ ions, are 9.28 x 10(-22) and 4.94 x 10(-22) cm(2) for the pi and sigma polarizations, respectively. The radiative lifetime of the D-5(4) multiplet is 611 mu s? The crystal exhibits intense green emission around 548 nm under excitation at 487 nm. The peak emission cross-sections at 548 nm of the crystal, corresponding to the D-5(4)-> F-7(5) transition of Tb3+ ions, are 8.36 x 10(-21) and 5.10 x 10(-21) cm(2) for pi and sigma polarizations, respectively. The fluorescence lifetime of the D-5(4) multiplet is 575 mu s, and quantum efficiency reaches to 94%. Above results show that the NaTb(WO4)(2) crystal is a potential gain medium for visible laser.
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页数：6
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