Efficient 3.5 μm mid-infrared emission in heavily Er3+-doped fluoroaluminate glasses and its emission mechanism

被引：0

作者：

Zhang, Jiquan ^{[1
]}

Wang, Ruicong ^{[1
]}

Wang, Xin ^{[1
]}

Li, Wenhao ^{[1
]}

Liu, Mo ^{[1
]}

Jia, Shijie ^{[1
]}

Wang, Lijun ^{[2
]}

Ning, Yongqiang ^{[2
]}

Peng, Hangyu ^{[2
]}

Brambilla, Gilberto ^{[3
]}

Wang, Shunbin ^{[1
]}

Wang, Pengfei ^{[1
,4
]}

机构：

[1] Key Lab of In-Fiber Integrated Optics of Ministry of Education of China, Harbin Engineering University, Harbin,150001, China

[2] State Key Laboratory of Luminescence and Application, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun,130033, China

[3] Optoelectronics Research Centre, University of Southampton, Southampton,SO17 1BJ, United Kingdom

[4] Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen,518060, China

来源：

Journal of Luminescence | 2021年 / 238卷

基金：

中国国家自然科学基金;

关键词：

3.5 μm emission - Doped sample - Emission mechanism - Er3+-doped - Fluorescence properties - Fluoroaluminate glass - Laser diode pumping - Melt quenching method - Mid-infrared emission - Mid-infrared fluorescence;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Er3+-doped fluoroaluminate glasses with different concentrations were prepared by using melt-quenching method. Under a 638 nm laser diode pumping, efficient 3.5 μm emission was observed in the 18 mol% Er3+ doped sample, which was ascribed to the Er3+: 4F9/2 → 4I9/2 transition. The fluorescence properties such as radiative transition probability, energy level lifetime and branch ratio were predicted by the well-known Judd-Ofelt theory, while the emission and absorption cross-sections were calculated using the Füchtbauer-Ladenburg and McCumber theories, respectively. Both simulated and experimental results show that Er3+-doped fluoroaluminate material is a promising gain medium for 3.5 μm laser applications. © 2021 Elsevier B.V.

引用

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