Highly efficient red, green and blue upconversion luminescence of Eu3+/Tb3+-codoped silicate by femtosecond laser irradiation

被引：13

作者：

Xu, Shiqing ^{[1
]}

Wang, Wei

Zhu, Shifeng

Zhu, Bin

Qiu, Jianrong

机构：

[1] Zhejiang Univ, Coll Mat Sci & Chem Engn, Hangzhou 310027, Peoples R China

[2] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 442卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2007.06.014

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Infrared to red, green and blue upconversion luminescence is demonstrated in Eu3+/Tb3+ -codoped silicate glass under focused infrared femtosecond laser irradiation. The optical properties show that the emissions come from the 5d -> 4f transition of EU3+ and Tb3+. The relationship between the emission intensity of EU3+/Tb3+ -codoped silicate glass and the pump power reveals that three-photon absorption predominates in the conversion process from the infrared into the visible luminescence. The analysis of the upconversion mechanism suggests that the luminescence may come from a three-photon simultaneous absorption that leads to a population of the 5d level in which the characteristic luminescence occurs. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：492 / 495

页数：4

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