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Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams

Plasmonics, the science and technology of the interaction of light with metallic objects, is fundamentally changing the way we can detect, generate and manipulate light. Although the field is progressing swiftly, thanks to the availability of nanoscale manufacturing and analysis methods, fundamental...

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Detalles Bibliográficos
Autores principales: Guzzinati, Giulio, Béché, Armand, Lourenço-Martins, Hugo, Martin, Jérôme, Kociak, Mathieu, Verbeeck, Jo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5394338/
https://www.ncbi.nlm.nih.gov/pubmed/28401942
http://dx.doi.org/10.1038/ncomms14999
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author Guzzinati, Giulio
Béché, Armand
Lourenço-Martins, Hugo
Martin, Jérôme
Kociak, Mathieu
Verbeeck, Jo
author_facet Guzzinati, Giulio
Béché, Armand
Lourenço-Martins, Hugo
Martin, Jérôme
Kociak, Mathieu
Verbeeck, Jo
author_sort Guzzinati, Giulio
collection PubMed
description Plasmonics, the science and technology of the interaction of light with metallic objects, is fundamentally changing the way we can detect, generate and manipulate light. Although the field is progressing swiftly, thanks to the availability of nanoscale manufacturing and analysis methods, fundamental properties such as the plasmonic excitations' symmetries cannot be accessed directly, leading to a partial, sometimes incorrect, understanding of their properties. Here we overcome this limitation by deliberately shaping the wave function of an electron beam to match a plasmonic excitations' symmetry in a modified transmission electron microscope. We show experimentally and theoretically that this offers selective detection of specific plasmon modes within metallic nanoparticles, while excluding modes with other symmetries. This method resembles the widespread use of polarized light for the selective excitation of plasmon modes with the advantage of locally probing the response of individual plasmonic objects and a far wider range of symmetry selection criteria.
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spelling pubmed-53943382017-05-17 Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams Guzzinati, Giulio Béché, Armand Lourenço-Martins, Hugo Martin, Jérôme Kociak, Mathieu Verbeeck, Jo Nat Commun Article Plasmonics, the science and technology of the interaction of light with metallic objects, is fundamentally changing the way we can detect, generate and manipulate light. Although the field is progressing swiftly, thanks to the availability of nanoscale manufacturing and analysis methods, fundamental properties such as the plasmonic excitations' symmetries cannot be accessed directly, leading to a partial, sometimes incorrect, understanding of their properties. Here we overcome this limitation by deliberately shaping the wave function of an electron beam to match a plasmonic excitations' symmetry in a modified transmission electron microscope. We show experimentally and theoretically that this offers selective detection of specific plasmon modes within metallic nanoparticles, while excluding modes with other symmetries. This method resembles the widespread use of polarized light for the selective excitation of plasmon modes with the advantage of locally probing the response of individual plasmonic objects and a far wider range of symmetry selection criteria. Nature Publishing Group 2017-04-12 /pmc/articles/PMC5394338/ /pubmed/28401942 http://dx.doi.org/10.1038/ncomms14999 Text en Copyright © 2017, The Author(s) 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 to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Guzzinati, Giulio
Béché, Armand
Lourenço-Martins, Hugo
Martin, Jérôme
Kociak, Mathieu
Verbeeck, Jo
Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
title Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
title_full Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
title_fullStr Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
title_full_unstemmed Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
title_short Probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
title_sort probing the symmetry of the potential of localized surface plasmon resonances with phase-shaped electron beams
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5394338/
https://www.ncbi.nlm.nih.gov/pubmed/28401942
http://dx.doi.org/10.1038/ncomms14999
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