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

页码：239 / 242

页数：4

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