Upconversion dynamics in Er3+-doped fluoroindate glasses

被引：26

作者：

Martín, IR ^{[1
]}

Vélez, P ^{[1
]}

Rodríguez, VD ^{[1
]}

Rodríguez-Mendoza, UR ^{[1
]}

Lavín, V ^{[1
]}

机构：

[1] Univ La Laguna, Dept Fis Fundamental & Expt, E-38206 Tenerife, Spain

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1999年 / 55卷 / 05期

关键词：

upconversion; fluoroindate glasses; Er3+;

D O I：

10.1016/S1386-1425(98)00190-5

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The mechanisms and dynamics of the upconversion emissions in Er3+-doped fluoroindate glasses by exciting in the range from 955 to 975 nm have been investigated. The upconversion emissions observed at 545 and 660 nm have been analysed studying their dependence on excitation intensity and Er3+ concentration. Temperature dependence of the upconversion efficiency for these emissions has been measured in the range from 10 to 295 K. The temporal evolution of the 545 nm upconversion emission has been obtained as a function of the wavelength of the pulsed excitation. From the analysis of these measurements with a proposed model, the relative weight of excited state absorption and energy transfer has been obtained. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：935 / 940

页数：6

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