期刊
NANO LETTERS
卷 12, 期 6, 页码 3207-3212出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl301190x
关键词
Metal nano-object; second-harmonic generation; cylindrical vector beams; nonlinear microscopy; boundary element method; plasmonics
类别
资金
- Academy of Finland [134973, 135084]
- Graduate School of Modern Optics and Photonics in Finland
- Emil Aaltonen Foundation
- Graduate School of the Tampere University of Technology
- Academy of Finland (AKA) [134973, 135084, 134973, 135084] Funding Source: Academy of Finland (AKA)
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.
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