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Polarization dependence of second harmonic generation from plasmonic nanoprism arrays
The second order nonlinear optical response of gold nanoprisms arrays is investigated by means of second harmonic generation (SHG) experiments and simulations. The polarization dependence of the nonlinear response exhibits a 6-fold symmetry, attributed to the local field enhancement through the exci...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6687713/ https://www.ncbi.nlm.nih.gov/pubmed/31395922 http://dx.doi.org/10.1038/s41598-019-47970-3 |
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author | Raygoza-Sánchez, K. Y. Rocha-Mendoza, I. Segovia, P. Krasavin, A. V. Marino, G. Cesca, T. Michieli, N. Mattei, G. Zayats, A. V. Rangel-Rojo, R. |
author_facet | Raygoza-Sánchez, K. Y. Rocha-Mendoza, I. Segovia, P. Krasavin, A. V. Marino, G. Cesca, T. Michieli, N. Mattei, G. Zayats, A. V. Rangel-Rojo, R. |
author_sort | Raygoza-Sánchez, K. Y. |
collection | PubMed |
description | The second order nonlinear optical response of gold nanoprisms arrays is investigated by means of second harmonic generation (SHG) experiments and simulations. The polarization dependence of the nonlinear response exhibits a 6-fold symmetry, attributed to the local field enhancement through the excitation of the surface plasmon resonances in bow-tie nanoantennas forming the arrays. Experiments show that for polarization of the input light producing excitation of the plasmonic resonances in the bow-tie nanoantennas, the SHG signal is enhanced; this despite the fact that the linear absorption spectrum is not dependent on polarization. The results are confirmed by electrodynamic simulations which demonstrate that SHG is also determined by the local field distribution in the nanoarrays. Moreover, the maximum of SHG intensity is observed at slightly off-resonance excitation, as implemented in the experiments, showing a close relation between the polarization dependence and the structure of the material, additionally revealing the importance of the presence of non-normal electric field components as under focused beam and oblique illumination. |
format | Online Article Text |
id | pubmed-6687713 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-66877132019-08-13 Polarization dependence of second harmonic generation from plasmonic nanoprism arrays Raygoza-Sánchez, K. Y. Rocha-Mendoza, I. Segovia, P. Krasavin, A. V. Marino, G. Cesca, T. Michieli, N. Mattei, G. Zayats, A. V. Rangel-Rojo, R. Sci Rep Article The second order nonlinear optical response of gold nanoprisms arrays is investigated by means of second harmonic generation (SHG) experiments and simulations. The polarization dependence of the nonlinear response exhibits a 6-fold symmetry, attributed to the local field enhancement through the excitation of the surface plasmon resonances in bow-tie nanoantennas forming the arrays. Experiments show that for polarization of the input light producing excitation of the plasmonic resonances in the bow-tie nanoantennas, the SHG signal is enhanced; this despite the fact that the linear absorption spectrum is not dependent on polarization. The results are confirmed by electrodynamic simulations which demonstrate that SHG is also determined by the local field distribution in the nanoarrays. Moreover, the maximum of SHG intensity is observed at slightly off-resonance excitation, as implemented in the experiments, showing a close relation between the polarization dependence and the structure of the material, additionally revealing the importance of the presence of non-normal electric field components as under focused beam and oblique illumination. Nature Publishing Group UK 2019-08-08 /pmc/articles/PMC6687713/ /pubmed/31395922 http://dx.doi.org/10.1038/s41598-019-47970-3 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Raygoza-Sánchez, K. Y. Rocha-Mendoza, I. Segovia, P. Krasavin, A. V. Marino, G. Cesca, T. Michieli, N. Mattei, G. Zayats, A. V. Rangel-Rojo, R. Polarization dependence of second harmonic generation from plasmonic nanoprism arrays |
title | Polarization dependence of second harmonic generation from plasmonic nanoprism arrays |
title_full | Polarization dependence of second harmonic generation from plasmonic nanoprism arrays |
title_fullStr | Polarization dependence of second harmonic generation from plasmonic nanoprism arrays |
title_full_unstemmed | Polarization dependence of second harmonic generation from plasmonic nanoprism arrays |
title_short | Polarization dependence of second harmonic generation from plasmonic nanoprism arrays |
title_sort | polarization dependence of second harmonic generation from plasmonic nanoprism arrays |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6687713/ https://www.ncbi.nlm.nih.gov/pubmed/31395922 http://dx.doi.org/10.1038/s41598-019-47970-3 |
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