Effect of WO3 on the spectroscopic properties in Er3+/Yb3+ co-doped bismuth-borate glasses

被引：4
|
作者：
Wang, Jun [1 ]
Zhou, Yaxun
Dai, Shixun
Xu, Tiefeng
Nie, Qiuhua
机构：
[1] Ningbo Univ, State Key Lab Base Novel Funct Mat & Preparat Sci, Fac Informat Sci & Engn, Ningbo 315211, Peoples R China
[2] Chongqing Univ, Coll Optoelect Engn, Chongqing 400044, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2007年 / 400卷 / 1-2期
关键词：
Er3+/Yb3+ co-doped; Bi2O3-B2O3-WO3; glasses; spectroscopic properties;
D O I：
10.1016/j.physb.2007.07.014
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The spectroscopic properties of Er3+ /Yb3+ co-doped Bi2O3-B2O3-WO3 (BBW) glasses were analyzed and discussed. The effect of WO3 content on the absorption spectra, the Judd-Ofelt parameters Omega(1) (t = 2, 4, 6), emission spectra and the lifetime of the I-4(13/2) level and the quantum efficiency of Er3+:(I13/2 -> I15/2)-I-4-I-4 transition were also investigated. With the substitution Of WO3 for B2O3, the measured lifetime of the I-4(13/2) level and the quantum efficiency of Er3+ :I-4(13/2)-> I-4(15/2) transition increase from 0.98 to 1.31 ins and from 38.2% to 49.2%, respectively. The effective width of emission band and the emission cross-section both decrease slightly. And the emission spectra is analyzed via the different curve (sigma(e)-sigma(a)) of BBW glasses, the influence of OH- is also discussed. (C) 2007 Published by Elsevier B.V.
引用
收藏
页码：224 / 228
页数：5
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