Enhanced broadband near-infrared luminescence of Bi-doped oxyfluoride glasses

被引：28
|
作者：
Xu, Beibei [1 ,2 ]
Tan, Dezhi [1 ,2 ]
Zhou, Shifeng [1 ,2 ]
Hong, Zhanglian [1 ,2 ]
Sharafudeen, Kaniyarakkal N. [3 ,4 ]
Qiu, Jianrong [1 ,2 ,3 ,4 ]
机构：
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
[3] S China Univ Technol, State Key Lab Luminescence Phys & Chem, Guangzhou 510640, Guangdong, Peoples R China
[4] S China Univ Technol, Inst Opt Commun Mat, Guangzhou 510640, Guangdong, Peoples R China
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 27期
基金：
中国国家自然科学基金;
关键词：
OPTICAL BASICITY; BISMUTH; PHOTOLUMINESCENCE; FIBER; CERAMICS; EMISSION; CRYSTALS; OXIDE; RAY;
D O I：
10.1364/OE.20.029105
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Broadband near-infrared luminescence covering 900 to 1600 nm has been observed in Bi-doped oxyfluoride silicate glasses. The partial substitution of fluoride for oxide in Bi-doped silicate glasses leads to an increase of the intensity and lifetime of the near-infrared luminescence and blue-shift of the near-infrared emission peaks. Both Bi-doped silicate and oxyfluoride silicate glasses show visible luminescence with blue, green, orange and red emission bands when excited by ultra-violet light. Careful investigation on the luminescence properties indicates that the change of near-infrared luminescence is related to optical basicity, phonon energy of the glass matrix and crystal field around Bi active centers. These results offer a valuable way to control the luminescence properties of Bi-doped materials and may find some applications in fiber amplifier and fiber laser. (C) 2012 Optical Society of America
引用
收藏
页码：29105 / 29110
页数：6
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