Third-harmonic spectroscopy and modeling of the nonlinear response of plasmonic nanoantennas

被引：69

作者：

Metzger, Bernd ^{[1
,2
]}

Hentschel, Mario ^{[1
,2
,3
]}

Lippitz, Markus ^{[1
,2
,3
]}

Giessen, Harald ^{[1
,2
]}

机构：

[1] Univ Stuttgart, Inst Phys 4, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Res Ctr SCoPE, D-70569 Stuttgart, Germany

[3] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

来源：

OPTICS LETTERS | 2012年 / 37卷 / 22期

关键词：

GENERATION;

D O I：

10.1364/OL.37.004741

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We perform third-harmonic (TH) spectroscopy on rod-type gold nanoantenna arrays using widely tunable sub-30 fs laser pulses. We find the peak of the TH generation efficiency of the antenna arrays always slightly redshifted with respect to the peak of their linear extinction spectrum. We model the wavelength-dependent TH response quantitatively using a nonlinear harmonic oscillator model. (C) 2012 Optical Society of America

引用

页码：4741 / 4743

页数：3

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