Spectroscopic properties in Er3+-doped germanotellurite glasses and glass ceramics for mid-infrared laser materials

被引：31
|
作者：
Kang, Shiliang [1 ,2 ]
Xiao, Xiudi [3 ]
Pan, Qiwen [1 ,2 ]
Chen, Dongdan [1 ,2 ]
Qiu, Jianrong [4 ]
Dong, Guoping [1 ,2 ]
机构：
[1] South China Univ Technol, State Key Lab Luminescent Mat & Devices, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
[3] Chinese Acad Sci, Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
[4] Zhejiang Univ, Coll Opt Sci & Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China
来源：
SCIENTIFIC REPORTS | 2017年 / 7卷
基金：
中国国家自然科学基金;
关键词：
2.7; MU-M; TELLURITE GLASSES; M EMISSION; STRUCTURAL INVESTIGATIONS; OPTICAL-PROPERTIES; ENHANCED EMISSION; INTENSITIES;
D O I：
10.1038/srep43186
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Transparent Er3+-doped germanotellurite glass ceramics (GCs) with variable Te/Ge ratio were prepared by controllable heat-treated process. X-ray diffraction (XRD) and transmission electron microscope (TEM) confirmed the formation of nanocrystals in glass matrix. Raman spectra were used to investigate the evolution of glass structure and photon energy. Fourier transform infrared (FTIR) spectra were introduced to characterize the change of hydroxyl group (OH-) content. Enhanced 2.7 mu m emission was achieved from Er3+-doped GCs upon excitation with a 980 nm laser diode (LD), and the influence of GeO2 concentration and heat-treated temperature on the spectroscopic properties were also discussed in detail. It is found that the present Er3+-doped GC possesses large stimulated emission cross section at around 2.7 mu m (0.85 x 10(-20) cm(2)). The advantageous spectroscopic characteristics suggest that the obtained GC may be a promising material for mid-infrared fiber lasers.
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页数：10
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