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

页码：29105 / 29110

页数：6

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