Energy transfer and frequency upconversion in Yb3+-Er3+-doped PbO-GeO2 glass containing silver nanoparticles

被引：114
|
作者：
Kassab, L. R. P. [2 ]
Bomfim, F. A. [3 ]
Martinelli, J. R. [3 ]
Wetter, N. U. [4 ]
Neto, J. J. [4 ]
Araujo, Cid B. de [1 ]
机构：
[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil
[2] CEETEPS UNESP, Lab Vidros & Datacoes FATEC SP, BR-01124060 Sao Paulo, Brazil
[3] IPEN CNEN SP, Ctr Ciencias & Tecnol Mat, BR-05508900 Sao Paulo, Brazil
[4] IPEN CNEN SP, Ctr Lasers & Aplicacoes, BR-05508900 Sao Paulo, Brazil
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2009年 / 94卷 / 02期
关键词：
FLUORESCENCE; PARTICLES;
D O I：
10.1007/s00340-008-3249-2
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the infrared-to-visible frequency upconversion in Er3+-Yb3+-codoped PbO-GeO2 glass containing silver nanoparticles (NPs). The optical excitation is made with a laser at 980 nm in resonance with the F-2(5/2)-> F-2(7/2) transition of Yb3+ ions. Intense emission bands centered at 525, 550, and 662 nm were observed corresponding to Er3+ transitions. The simultaneous influence of the Yb3+-> Er3+ energy transfer and the contribution of the intensified local field effect due to the silver NPs give origin to the enhancement of the whole frequency upconversion spectra.
引用
收藏
页码：239 / 242
页数：4
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