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

被引：0

作者：

李忠秀 ^{[1
,2
]}

徐铁峰 ^{[1
]}

沈祥 ^{[1
]}

戴世勋 ^{[1
]}

王训四 ^{[1
]}

聂秋华 ^{[1
]}

章向华 ^{[3
]}

机构：

[1] College of Information Science and Engineering,Ningbo University

[2] College of Science,Jiangxi Agricultural University

[3] Laboratoire de Verres et Ceramiques,Universitè de Rennes I

来源：

JournalofRareEarths | 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;

D O I：

暂无

中图分类号：

TQ171.1 [基础理论];

学科分类号：

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 μm 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 μm fluorescence intensity significantly.The effective energy transfer between the two rare-earth ions were mainly attributed to the resonance energy transfer from Tm3+:3F4 to Dy3+:6H11/2 level.Emission cross section of 2.9 μm mid-infrared luminescence was also investigated according to Judd-Ofelt theory,σe=2.51×10–20 cm2.

引用

页码：105 / 108

页数：4

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