Effects of Er3+ concentration on the optical properties of Er3+:SrGdGa3O7 single crystals

被引：8
|
作者：
Gao, Shufang [1 ]
Chen, Tongzhen [1 ]
Hu, Mingyuan [2 ]
Xu, Shan [1 ]
Xiong, Yan [1 ]
Cheng, Shubo [1 ]
Zhang, Weibin [1 ]
Wang, Yeqing [3 ]
Yang, Wenxing [1 ]
机构：
[1] Yangtze Univ, Sch Phys & Optoelect Engn, Jingzhou 434023, Peoples R China
[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
[3] East China Jiaotong Univ, Dept Appl Phys, Nanchang 330013, Jiangxi, Peoples R China
来源：
OPTICAL MATERIALS | 2019年 / 98卷
基金：
中国国家自然科学基金;
关键词：
Optical properties; Rare-earth; Ion concentration; Er3+:SrGdGa3O7 crystals; 2.7; MU-M; M EMISSION; LASER; FREQUENCY; SRGDGA3O7;
D O I：
10.1016/j.optmat.2019.109502
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High-quality single crystals of different Er3+ concentration doped SrGdGa3O7(SGGO) were grown successfully by the Czochralski method. The absorption, up-conversion, near-infrared and mid-infrared fluorescence spectra, as well as the fluorescence decay curves of Er:I-4(13/2) and I-4(11/2) levels in Er:SGGO crystal were measured at room temperature. As the concentration of Er3+ ions increase, the spectra of Er:SGGO crystals show weaker near-infrared emission and stronger mid-infrared emission. The lifetime of the I-4(13/2) state decreases by nearly 7times while the lifetime of the I-4(11/2) state decreases by only about 1.3 times in the Er:SGGO crystals. These results indicate that the heavily Er3+ doped SGGO crystals is beneficial to improve the 2.7 mu m laser.
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页数：4
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