Crystal growth and spectral properties of Nd3+/Er3+: CaLaAl0.6Ga2.4O7 crystal for a 2.7 μm laser

被引：2
作者：
Liu, Yunyun [1 ]
Pan, Fei [2 ]
Tu, Chaoyang [3 ]
Sun, Yijian [4 ]
Yao, Haiyun [1 ]
机构：
[1] Zaozhuang Univ, Sch Optoelect Engn, Zaozhuang 277160, Peoples R China
[2] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
[3] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
[4] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Jiangxi, Peoples R China
来源：
JOURNAL OF CRYSTAL GROWTH | 2020年 / 536卷
关键词：
Crystal growth; Optical properties; Mid-IR laser; EMISSION; ER; IONS;
D O I：
10.1016/j.jcrysgro.2020.125576
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Nd3+/Er3+: CaLaAl0.6Ga2.4O7 (abbr. as Nd3+/Er3+: CLAGO) crystal was firstly grown by Czochralski method. The 2.7 mu m fluorescence emission properties and energy transfer mechanism of this crystal were investigated. Besides better absorption characteristic, the spectra of Nd3+/Er3+: CLAGO show much weaker near-infrared emission as well as superior mid-infrared emission in comparison to Er3+: CLGO. Furthermore, the self-termination bottleneck for Er-3(+) 2.7 mu m laser was greatly decreased in Nd3+/Er3+: CLAGO crystal and the energy transfer efficiencies of Nd3+: F-4(3/2) -> Er3+: I-4(11/2) and EP + : I-4(13/2) -> Nd3+: I-4(15/2) were determined. In the best case, the above four advantages indicate that the Nd3+/Er3+: CLAGO crystal might be suitable for pulsed operation and a promising 2.7 mu m laser medium.
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页数：5
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