High efficient and broadband ∼3.5 μm emission of Er3+:YAG crystal

被引：8

作者：

Huang, Jianhui ^{[1
]}

Wang, Bo ^{[3
]}

You, Weixiong ^{[1
]}

Zhang, Liaolin ^{[1
]}

Sun, Yijian ^{[1
]}

Tu, Chaoyang ^{[1
]}

Gong, Guoliang ^{[1
]}

Liu, Yao ^{[2
]}

机构：

[1] Jiangxi Univ Sci & Technol, Coll Rare Earths, Ganzhou 341000, Jiangxi, Peoples R China

[2] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Jiangxi, Peoples R China

[3] Wuyi Univ, Sch Appl Phys & Mat, Jiangmen 529020, Guangdong, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2021年 / 258卷

基金：

中国国家自然科学基金;

关键词：

Er3+:YAG crystal; Spectroscopic properties; 3.5 mu m laser; Micro-pulling down method; LASER; ABSORPTION; GROWTH; INTENSITIES; ERBIUM; ER;

D O I：

10.1016/j.saa.2021.119587

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The YAG single crystals doped with 10 at.%, 20 at.% and 50 at.% Er3+ were successfully grown by the micro pulling down method and spectroscopic properties of the crystals were investigated. The main interest was focus on the relation between the Er3+ concentration and similar to 3.5 mu m emission of Er3+:YAG crystals. Room temperature absorption spectra were analyzed by the Judd-Ofelt theory. The stimulated emission cross-sections were calculated by the Fuchtbauer-Ladenburg equation. The fluorescence intensities and peak emission cross-sections of the crystals at similar to 3.5 mu m are slightly decreasing with the increase of Er3+ concentration. The trend of the emission properties in NIR and visible region with the Er3+ concentration was also discussed and compared. The results indicate that the highly doped Er3+ concentration is beneficial to realize the similar to 3.5 mm laser output. (C) 2021 Published by Elsevier B.V.

引用

页数：7

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