Near-infrared third-order nonlinearity of PbO-GeO2 films containing Cu and Cu2O nanoparticles

被引：31

作者：

Gomez, Luis A. ^{[1
]}

dos Santos, F. E. P. ^{[1
]}

Gomes, A. S. L. ^{[1
]}

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

Kassab, Luciana R. P. ^{[2
]}

Hora, Windson G. ^{[3
]}

机构：

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

[2] Univ Estadual Paulista, CEETEPS, Lab Vidros & Datacao, Fac Tecnol Sao Paulo, BR-01124060 Sao Paulo, Brazil

[3] Univ Sao Paulo, Dept Engn Sistemas Elect, Escola Politecn, BR-05508060 Sao Paulo, Brazil

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 14期

关键词：

D O I：

10.1063/1.2908226

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report measurements of the nonlinear (NL) refractive index n(2) of lead-germanium films (LGFs) containing Cu and Cu2O nanoparticles (NPs). The thermally managed eclipse Z-scan technique with 150 fs pulses from a laser operating at 800 nm was used. The NL refractive index measured, n(2)=6.3x10(-12) cm(2)/W has electronic origin and the NL absorption coefficient alpha(2) is smaller than 660 cm/GW. The figure of merit n(2)/lambda alpha(2) is enhanced by more than two orders of magnitude in comparison with the result for the LGFs without the copper based NPs. (C) 2008 American Institute of Physics.

引用

页数：3

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