Second-Harmonic Generation Imaging of Metal Nano-Objects with Cylindrical Vector Beams

被引：150

作者：

Bautista, Godofredo ^{[1
]}

Huttunen, Mikko J. ^{[1
]}

Makitalo, Jouni ^{[1
]}

Kontio, Juha M. ^{[2
]}

Simonen, Janne ^{[2
]}

Kauranen, Martti ^{[1
]}

机构：

[1] Tampere Univ Technol, Dept Phys, FIN-33101 Tampere, Finland

[2] Tampere Univ Technol, Optoelect Res Ctr, FIN-33101 Tampere, Finland

来源：

NANO LETTERS | 2012年 / 12卷 / 06期

基金：

芬兰科学院;

关键词：

Metal nano-object; second-harmonic generation; cylindrical vector beams; nonlinear microscopy; boundary element method; plasmonics; GOLD NANOPARTICLES; SYMMETRY-BREAKING; MODES; METAMATERIALS; SPECTROSCOPY; RESONATORS; NANODIMERS; MICROSCOPY; PLASMONS;

D O I：

10.1021/nl301190x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We introduce an imaging technique based on second-harmonic generation with cylindrical vector beams that is extremely sensitive to three-dimensional orientation and nanoscale morphology of metal nano-objects. Our experiments and second-harmonic field calculations based on frequency-domain boundary element method are in very good agreement. The technique provides contrast for structural features that cannot be resolved by linear techniques or conventional states of polarization and shows great potential for simple and cost-effective far-field optical imaging in plasmonics.

引用

页码：3207 / 3212

页数：6

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