Investigation of 2.9 μm luminescence properties and energy transfer in Tm3+/Dy3+ co-doped chalcohalide glasses

被引：16

作者：

Li Zhongxiu ^{[1
,2
]}

Xu Tiefeng ^{[1
]}

Shen Xiang ^{[1
]}

Dai Shixun ^{[1
]}

Wang Xunsi ^{[1
]}

Nie Qiuhua ^{[1
]}

Zhang Xianghua ^{[3
]}

机构：

[1] Ningbo Univ, Coll Informat Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China

[2] Jiangxi Agr Univ, Coll Sci, Nanchang 330045, Peoples R China

[3] Univ Rennes 1, Lab Verres & Ceram, F-35042 Rennes, France

来源：

JOURNAL OF RARE EARTHS | 2011年 / 29卷 / 02期

基金：

中国国家自然科学基金;

关键词：

chalcohalide glasses; luminescence properties; energy transfer; Tm3+/Dy3+; rare earths; OPTICAL-PROPERTIES; CHALCOGENIDE; DY3+; INTENSITIES; IONS;

D O I：

10.1016/S1002-0721(10)60412-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of chalcohalide glasses based on the composition of 0.9(Ge30Ga5Se65)-0.1CsI with different Tm3+/Dy3+-codoped ions concentrations were synthesized by melt-quenching technique. The absorption spectra and 2.9 mu m mid-infrared fluorescence spectra of glass samples under 800 nm laser excitation were measured. The results showed that Tm3+ was an efficient sensitizer, which could enhance the Dy3+: 2.9 mu m fluorescence intensity significantly. The effective energy transfer between the two rare-earth ions were mainly attributed to the resonance energy transfer from Tm3+:F-3(4) to Dy3+:H-6(11/2) level. Emission cross section of 2.9 mu m mid-infrared luminescence was also investigated according to Judd-Ofelt theory, sigma(e)=2.51x10(-20) cm(2).

引用

页码：105 / 108

页数：4

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