铋化物发光玻璃中Er3+离子的J-O光谱参量的计算分析  

J-O spectral parameters of Er ions in bismuth compound luminescent glass

作　　者：龙江迷 陈晓波[1] 赵国营 吴正龙[1] 孟少华 马瑜 郭敬华[1] 尤佳佳 刘媛 李崧[1] 黄建华 王科志[3] LONG Jiangmi;CHEN Xiaobo;ZHAO Guoying;WU Zhenglong;MENG Shaohua;MA Yu;GUO Jinghua;YOU Jiajia;LIU Yuan;LI Song;HUANG Jianhua;WANG Kezhi(Department of Physics,Beijing Normal University and Beijing Key Laboratory of Applied Optics,100875,Beijing,China;School of Materials Science and Technology,Shanghai Institute of Technology,200235,Shanghai,China;College of Chemistry,Beijing Normal University,100875,Beijing,China)

机构地区：[1]北京师范大学物理学系,应用光学北京市重点实验室,北京100875 [2]上海应用技术大学材料科学与工程学院,上海200235 [3]北京师范大学化学学院,北京100875

出　　处：《北京师范大学学报（自然科学版）》2021年第2期213-218,共6页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(51472028);中央高校基本科研业务费专项资金资助项目(2017TZ01)。

摘　　要：贵金属等离子体对稀土离子发光晶体材料的发光有着一定的增强作用.本文对基质为60 Bi2O3-20SiO2-20Ga2O3的Er3+(0.5%)Ag(0.5%)铋化物发光玻璃进行了吸收光谱的测量.利用J-O理论分析了Er3+在该基质中的振子强度、自发辐射速率、积分发射截面和荧光分支比等光谱参数.通过振子强度和3个参量Ωλ(λ=2,4,6)的拟合计算,根据拟合结果对Er3+的各能级跃迁的积分发射截面、荧光分支比等光谱参数进行计算分析,发现这些参数有着较大的数值,表明Er3+在本文所研究的基质材料中具有较强的发光能力.Noble metal plasma can enhance luminescence of rare earth ion emitting crystal materials.In the present work,the absorption spectra of Er3+(0.5%) Ag(0.5%) bismuth compound luminescent glass in matrix 60 Bi2O3-20 SiO2-20Ga2O3 were measured.Spectral parameters(intensity,spontaneous emission rate,integral emission cross section and fluorescence branching ratio) of Er3+ in this matrix were analyzed based on J-O theory.Oscillator strength and three parameter Ωλ(λ=2,4,6) fitting were used to calculate Er3+ integral emission cross section and fluorescence branch ratio,which were found to be quite large.These data suggest that Er3+ ions in matrix used in the present work emit strong luminescence.

关 键 词：铋化物发光玻璃 J-O理论 等离子体增强 吸收光谱 

分 类 号：O433.1[机械工程—光学工程]