Variable ratio blue/red upconversion in Yb3+-Tm3+codoped fluorosilicate glasses

被引：0

作者：

Wang, Xin ^{[1
]}

Tian, Ke ^{[2
]}

Zhao, Haiyan ^{[1
]}

Zhao, Xiaotong ^{[2
]}

Zhang, Zhi ^{[2
]}

Yu, Jin ^{[2
]}

Liu, Dejun ^{[1
]}

Brambilla, Gilberto ^{[3
]}

Wang, Pengfei ^{[1
,2
]}

机构：

[1] Shenzhen Univ, Coll Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China

[2] Harbin Engn Univ, Coll Sci, Key Lab Infiber Integrated Opt, Minist Educ, Harbin 150001, Peoples R China

[3] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, England

来源：

OPTICS LETTERS | 2023年 / 48卷 / 14期

基金：

中国国家自然科学基金;

关键词：

EMISSION; NANOCRYSTALS; LUMINESCENCE;

D O I：

10.1364/OL.496074

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Simultaneous blue-red emission in a fiber pumped by a single wavelength source is perceived as a great challenge because of the large energy difference of the emitted photons. This Letter reports the dependence of the blue-to-red upconver-sion (UC) emission ratio in Yb3+-Tm3+ codoped fluorosilicate glasses (FSGs) under the excitation of a 980-nm laser on the host glass silica content. Photoluminescence spectra and SEM-EDS are used to clarify the UC mechanism, indicat-ing that the probability of the cross-relaxation (CR) process 1G4 + 3F2 & RARR;3H6 + 3F4 is key to the dominance of the blue or red emissions. This research can provide a new platform for variable UC luminescence. & COPY; 2023 Optica Publishing Group

引用

页码：3721 / 3724

页数：4

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