Frequency upconversion in Er3+ doped PbO-GeO2 glasses containing metallic nanoparticles

被引：125

作者：

da Silva, Davinson Mariano

Pires Kassab, Luciana Reyes

Luthi, Stefan R.

de Araujo, Cid B. ^{[1
]}

Gomes, Anderson S. L.

Valenzuella Bell, Maria Jose

机构：

[1] Escola Politecn USP, Dept Engn Sistemas Electron, BR-05508900 Sao Paulo, SP, Brazil

[2] Fac Tecnol Sao Paulo, Lab Vidros & Datacao, BR-01124060 Sao Paulo, SP, Brazil

[3] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 08期

关键词：

D O I：

10.1063/1.2679798

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors report the infrared-to-visible frequency upconversion (UPC) process in Er3+ doped PbO-GeO2 glasses containing silver nanoparticles (NPs) with an average diameter of 2.2 nm. The absorption spectra of the samples present a band centered at 470 nm due to the surface plasmons associated with the NPs. The intensity of the band grows with increasing NP concentration. The experiments were performed by exciting the samples with a 980 nm diode laser and observing the UPC emissions in the red-green region. The enhanced UPC intensity is attributed to the local field effect in the proximity of the NPs. (c) 2007 American Institute of Physics.

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页数：3

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