Composition-dependent optical transitions and 2.0 μm emission properties of Ho^(3+) in xGeO_2-(80-x)TeO_2-9.5ZnF_2-10NaF-0.5Ho_2O_3 glasses  

作　　者：郑燕峰 陈宝玖 孙佳石 程丽红 仲海洋 李香萍 张金苏 田跃 于婷婷 黄丽波 

机构地区：[1]Department of Physics,Dalian Maritime University

出　　处：《Journal of Rare Earths》2011年第10期924-928,共5页稀土学报（英文版）

基　　金：supported by National Natural Science Foundation of China (50972021 and 61078061);Natural Science Foundation of Liaoning Province(20092147);Foundation of Education Department of Liaoning Province (L2010056);Fundamental Research Funds for the Central Universities (117125)

摘　　要：Ho3＋ doped glasses with various compositions xGeO2-（80-x）TeO2-9.5ZnF2-1ONaF-O.5Ho203 （x=, 10, 20, 30, 40, 50, 60, 70 and 80） were prepared by a melt-quenching technique. The composition-dependent optical transition properties of Ho3＋ were investigated in the framework of Judd-Ofelt theory. The emission cross sections for5I7→5I8 transition of 1-Io3＋ in these glasses were calculated according to McCumber theory, and their compositional dependence was discussed. A simple method was proposed in calculating the emission cross sections of 5I7→5I8 transition, and the calculation results were compared with those derived from McCumber theory. Finally, the optical gain coefficient spectra for 5I7→5I8 transition were also analyzed.Ho3＋ doped glasses with various compositions xGeO2-（80-x）TeO2-9.5ZnF2-1ONaF-O.5Ho203 （x=, 10, 20, 30, 40, 50, 60, 70 and 80） were prepared by a melt-quenching technique. The composition-dependent optical transition properties of Ho3＋ were investigated in the framework of Judd-Ofelt theory. The emission cross sections for5I7→5I8 transition of 1-Io3＋ in these glasses were calculated according to McCumber theory, and their compositional dependence was discussed. A simple method was proposed in calculating the emission cross sections of 5I7→5I8 transition, and the calculation results were compared with those derived from McCumber theory. Finally, the optical gain coefficient spectra for 5I7→5I8 transition were also analyzed.

关 键 词：Judd-Ofelt theory Ho3＋ MID-INFRARED CROSS-SECTION tellurite-germanate glass rare earths 

分 类 号：O482.3[理学—固体物理]