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Polarized Nonlinear...
Polarized Nonlinear Nanoscopy of Metal Nanostructures
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- Balla, N. K. (författare)
- Institut Fresnel
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- Rendon-Barraza, C. (författare)
- Institut Fresnel
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- Hoang, L. M. (författare)
- University of Georgia,Institut Fresnel
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- Karpinski, Pawel, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bermudez-Urena, E. (författare)
- Barcelona Institute of Science and Technology (BIST)
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- Brasselet, S. (författare)
- Institut Fresnel
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(creator_code:org_t)
- 2017-01-24
- 2017
- Engelska.
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Ingår i: ACS Photonics. - : American Chemical Society (ACS). - 2330-4022. ; 4:2, s. 292-301
- Relaterad länk:
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http://dx.doi.org/10...
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https://hal.archives...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Nonlinear signals from metal nanostructures are known to be highly polarization-dependent, due to the intrinsic vectorial nature of nonlinear optical coupling. Nonlinear optical polarization responses contain important information on the near-field properties of nanostructures;, however, they remain complex to monitor and to model at the nanoscale. Polarization resolved nonlinear optical microscopy can potentially address this question; however, the recorded signals are generally averaged over the diffraction-limited size of a few hundreds of nanometers, thus, missing the spatial specificity of the nanostructure's optical response. Here we present a form of polarization resolved microscopy, named polarization nonlinear nanoscopy, which reveals subdiffraction scale vectorial variations of electromagnetic fields, even though the intensity image is diffraction-limited. We show that by exploiting, at a single subdiffraction pixel level, the information gained by the polarization-induced modulation, it is possible to spatially map the vectorial nature of plasmonic nonlinear optical interactions in nanostructures, revealing in particular surface contributions, retardation effects, and anisotropic spatial confinements.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- Optics
- gold nanoparticles
- metal
- Materials Science
- optical-properties
- particles
- polariiation
- plasmonics
- interference
- 2nd-harmonic generation microscopy
- light
- Physics
- Science & Technology - Other Topics
- modes
- oligomers
- second harmonic generation
- scattering
- nonlinear microscopy
- resonances
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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