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K-space polarimetry of bullseye plasmon antennas
Surface plasmon resonators can drastically redistribute incident light over different output wave vectors and polarizations. This can lead for instance to sub-diffraction sized nanoapertures in metal films that beam and to nanoparticle antennas that enable efficient conversion of photons between spa...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4415650/ https://www.ncbi.nlm.nih.gov/pubmed/25927570 http://dx.doi.org/10.1038/srep09966 |
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author | Osorio, Clara I. Mohtashami, Abbas Koenderink, A. Femius |
author_facet | Osorio, Clara I. Mohtashami, Abbas Koenderink, A. Femius |
author_sort | Osorio, Clara I. |
collection | PubMed |
description | Surface plasmon resonators can drastically redistribute incident light over different output wave vectors and polarizations. This can lead for instance to sub-diffraction sized nanoapertures in metal films that beam and to nanoparticle antennas that enable efficient conversion of photons between spatial modes, or helicity channels. We present a polarimetric Fourier microscope as a new experimental tool to completely characterize the angle-dependent polarization-resolved scattering of single nanostructures. Polarimetry allows determining the full Stokes parameters from just six Fourier images. The degree of polarization and the polarization ellipse are measured for each scattering direction collected by a high NA objective. We showcase the method on plasmonic bullseye antennas in a metal film, which are known to beam light efficiently. We find rich results for the polarization state of the beamed light, including complete conversion of input polarization from linear to circular and from one helicity to another. In addition to uncovering new physics for plasmonic groove antennas, the described technique projects to have a large impact in nanophotonics, in particular towards the investigation of a broad range of phenomena ranging from photon spin Hall effects, polarization to orbital angular momentum transfer and design of plasmon antennas. |
format | Online Article Text |
id | pubmed-4415650 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44156502015-05-12 K-space polarimetry of bullseye plasmon antennas Osorio, Clara I. Mohtashami, Abbas Koenderink, A. Femius Sci Rep Article Surface plasmon resonators can drastically redistribute incident light over different output wave vectors and polarizations. This can lead for instance to sub-diffraction sized nanoapertures in metal films that beam and to nanoparticle antennas that enable efficient conversion of photons between spatial modes, or helicity channels. We present a polarimetric Fourier microscope as a new experimental tool to completely characterize the angle-dependent polarization-resolved scattering of single nanostructures. Polarimetry allows determining the full Stokes parameters from just six Fourier images. The degree of polarization and the polarization ellipse are measured for each scattering direction collected by a high NA objective. We showcase the method on plasmonic bullseye antennas in a metal film, which are known to beam light efficiently. We find rich results for the polarization state of the beamed light, including complete conversion of input polarization from linear to circular and from one helicity to another. In addition to uncovering new physics for plasmonic groove antennas, the described technique projects to have a large impact in nanophotonics, in particular towards the investigation of a broad range of phenomena ranging from photon spin Hall effects, polarization to orbital angular momentum transfer and design of plasmon antennas. Nature Publishing Group 2015-04-30 /pmc/articles/PMC4415650/ /pubmed/25927570 http://dx.doi.org/10.1038/srep09966 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Osorio, Clara I. Mohtashami, Abbas Koenderink, A. Femius K-space polarimetry of bullseye plasmon antennas |
title | K-space polarimetry of bullseye plasmon antennas |
title_full | K-space polarimetry of bullseye plasmon antennas |
title_fullStr | K-space polarimetry of bullseye plasmon antennas |
title_full_unstemmed | K-space polarimetry of bullseye plasmon antennas |
title_short | K-space polarimetry of bullseye plasmon antennas |
title_sort | k-space polarimetry of bullseye plasmon antennas |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4415650/ https://www.ncbi.nlm.nih.gov/pubmed/25927570 http://dx.doi.org/10.1038/srep09966 |
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