Enhanced 573 nm yellow emissions of Dy3+ via Tb3+ deactivation in Na2Gd4(MoO4)7 crystal

被引：21

作者：

Huang, Runsheng ^{[1
,2
]}

Zhang, Peixiong ^{[1
,2
]}

Huang, Xingbin ^{[1
,2
]}

Wang, Rui ^{[1
,2
]}

Zhu, Siqi ^{[1
,2
]}

Yin, Hao ^{[1
,2
]}

Li, Zhen ^{[1
,2
]}

Chen, Zhenqiang ^{[1
,2
]}

机构：

[1] Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510630, Guangdong, Peoples R China

[2] Jinan Univ, Dept Optoelect Engn, Guangzhou 510632, Guangdong, Peoples R China

来源：

OPTICAL MATERIALS EXPRESS | 2017年 / 7卷 / 10期

基金：

中国国家自然科学基金;

关键词：

OPTICAL SPECTROSCOPY; RAMAN LASER; INTENSITIES; DYSPROSIUM; ABSORPTION; SPECTRA;

D O I：

10.1364/OME.7.003673

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Dy3+/Tb3+ co-doped Na2Gd4(MoO4)(7) yellow laser crystal was successfully grown and analyzed. The use of Tb3+ codoping for enhancing the Dy3+: F-4(9/2) -> H-6(13/2) yellow emissions was investigated in the Na2Gd4(MoO4)(7) crystal for the first time. In comparison to Dy3+ single-doped Na2Gd4(MoO4)(7) crystal, the Dy3+/Tb3+ co-doped Na2Gd4(MoO4)(7) crystal possessed a higher fluorescence branching ratio (80.2%), transition probability (3704 s(-1)), and fluorescence emission cross section (1.34x10(-20) cm(2)) corresponding to the laser transition F-4(9/2) -> H-6(13/2) of Dy3+. It was found that the introduced Tb3+ enhanced the 573 nm emission by depopulating the population of the laser lower level Dy3+: 6H(13/2), and has little influence on the laser upper level Dy3+: F-4(9/2) at the same time. These results suggest that Dy3+/Tb3+ co-doped Na2Gd4(MoO4)(7) crystal may be an attractive host for developing solid state lasers at around 573 nm under a conventional 450 nm LD. (C) 2017 Optical Society of America

引用

页码：3673 / 3679

页数：7

共 24 条

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