Solid-state green-light-emitting upconversion coherent random laser in macroporous LiNbO_3:Er

作     者：石凡 赵萌 贾晨 赵宇峰 陈胜勇 

作者机构：Key Laboratory of Computer Vision and System of Ministry of Education Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2018年第16卷第1期

页      面：62-65页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China under Grant Nos. U1509207  61325019  and 61703304 

主　　题：Solid-state green-light-emitting upconversion coherent random laser in macroporous LiNbO3:Er LN ETU 

摘      要：A solid-state green-light-emitting upconversion coherent random laser was realized by pumping macroporous erbium-doped lithium niobate with a 980 nm laser. The lasing threshold was determined to be about 40 k W∕cm~2.Above the threshold, the emission intensity increased sharply with the increasing pump intensity. Moreover, a narrow multi-peaks structure was observed in the green-light-emission band, and the positions of lasing lines were various at different angles. The results were the direct evidences of coherent random lasing emission from macroporous erbium-doped lithium niobate. These phenomena were attributed to the coexistence of upconversion emission and a multiple scattering feedback mechanism.