The optical properties of Tm^(3+) doped Na_5Lu_9F_(32) single crystal

作     者：盛启国 夏海平 汤庆阳 何仕楠 章践立 陈宝玖 

作者机构：Key Laboratory of Photo-electronic Materials Ningbo University Department of Physics Dalian Maritime University 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2017年第13卷第3期

页      面：201-205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(Nos.51472125 and 51272109) the Natural Science Foundation of Zhejiang Province(No.LZ17E020001) K.C. Wong Magna Fund in Ningbo University 

主　　题：Bridgman lifetime excitation stimulated relaxation excited transparency spacing spectrometer termine 

摘      要：Tm^(3+) doped Na_5Lu_9F_(32) single crystal with high optical quality was grown by an improved Bridgman method. The Judd-Ofelt intensity parameters ?_t(t=2, 4, 6) were calculated according to the measured absorption spectra and physical-chemical properties of the obtained Na_5Lu_9F_(32) single crystal. The stimulated emission cross-section of the ~3F_4→~3H_6 transition(～1.8 μm) is 0.35×10^(-20) cm^2 for Tm^(3+) doped Na_5Lu_9F_(32) single crystal. The emission spectra under the excitation of 790 nm laser diode(LD) and fluorescence lifetime at 1.8 μm were measured to reveal the fluorescence properties of Tm^(3+) doped Na_5Lu_9F_(32) single crystal. The research results show that the Tm^(3+) doped Na_5Lu_9F_(32) single crystal has larger stimulated emission cross-section compared with other crystals. All these spectral properties suggest that this kind of Tm^(3+)doped Na_5Lu_9F_(32) crystal with high physical-chemical stability and high-efficiency emission at 1.8 μm may be used as potential laser materials for optical devices.