2.7 μm emission properties of Er3+/Yb3+/Eu3+: SrGdGa3O7 and Er3+/Yb3+/Ho3+: SrGdGa3O7 crystals

被引：31
作者：
Xia, Houping [1 ,2 ]
Feng, Jianghe [3 ]
Ji, Yuexia [4 ]
Sun, Yijian [1 ,2 ]
Wang, Yan [1 ]
Jia, Zhitai [5 ]
Tu, Chaoyang [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys CAS, Fuzhou 350002, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
[3] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
[4] Anhui Univ Technol, Sch Math & Phys, Maanshan 243002, Anhui, Peoples R China
[5] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
来源：
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2016年 / 173卷
基金：
中国国家自然科学基金;
关键词：
Er3+/Yb3+/Eu3+: SrGdGa3O7; Er3+/Yb3+/Ho3+: SrGdGa3O7; Spectroscopic properties; Mid-infrared; SPECTROSCOPIC PROPERTIES; LASER; ER;
D O I：
10.1016/j.jqsrt.2015.12.018
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Er3+/Yb3+/Eu3+: SrGdGa3O7 and Er3+/Yb3+/Ho3+: SrGdGa3O7 crystals were grown by Czochralski technology and detailed spectroscopic analyses were carried out. It was found that the spectra of Er3+/Yb3+/Eu3+: SrGdGa3O7 crystal show weaker near-infrared emission and stronger mid-infrared emission as compared with Er3+/Yb3+: SrGdGa3O7 crystal. Furthermore, the lifetime of the I-4(13/2) state decreases from 10.58 ms in Er3+/Yb3+: SrGdGa3O7 crystal to 6.87 ms in Er3+/Yb3+/Eu3+: SrGdGa3O7 crystal, that is, the self saturation for 2.7 urn laser in Er3+/Yb3+/Eu3+: SrGdGa3O7 crystal is suppressed greatly. These results indicate that the doping of Eu3+ in Er3+/Yb3+: SrGdGa3O7 crystal is beneficial to improve the 2.7 mu m laser. In contrast, introducing Ho3+ in Er3+/Yb3+; SrGdGa3O7 crystal is adverse to realize Er3+-activated MIR laser operation. So Er3+/Yb3+/Eu3+: SrGdGa3O7 crystal could be a potential MIR gain media for enhanced 2.7 mu m laser. (C) 2015 Elsevier Ltd. All rights reserved.
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页码：7 / 12
页数：6
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