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Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas

Symmetry-breaking and scattering cancellation were observed in the dark-mode resonance of dipolar gold nanoantennas (NAs) on glass substrates coupled with oblique incidence and total internal reflection. With the assistance of evanescent waves, the coupling efficiency was twice as strong when the in...

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Detalles Bibliográficos
Autores principales: Yang, Jhen-Hong, Chen, Kuo-Ping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5007468/
https://www.ncbi.nlm.nih.gov/pubmed/27581766
http://dx.doi.org/10.1038/srep32194
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author Yang, Jhen-Hong
Chen, Kuo-Ping
author_facet Yang, Jhen-Hong
Chen, Kuo-Ping
author_sort Yang, Jhen-Hong
collection PubMed
description Symmetry-breaking and scattering cancellation were observed in the dark-mode resonance of dipolar gold nanoantennas (NAs) on glass substrates coupled with oblique incidence and total internal reflection. With the assistance of evanescent waves, the coupling efficiency was twice as strong when the incidence angle was larger than the critical angle. The Hamiltonian equation and absorption spectra were used to analyze the hybridization model of symmetric dipolar gold NAs. The antibonding mode could be coupled successfully by both transverse-magnetic (TM) and transverse-electric (TE) polarizations to NAs when the dimers orientation is parallel to the propagation direction of evanescent waves.
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spelling pubmed-50074682016-09-07 Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas Yang, Jhen-Hong Chen, Kuo-Ping Sci Rep Article Symmetry-breaking and scattering cancellation were observed in the dark-mode resonance of dipolar gold nanoantennas (NAs) on glass substrates coupled with oblique incidence and total internal reflection. With the assistance of evanescent waves, the coupling efficiency was twice as strong when the incidence angle was larger than the critical angle. The Hamiltonian equation and absorption spectra were used to analyze the hybridization model of symmetric dipolar gold NAs. The antibonding mode could be coupled successfully by both transverse-magnetic (TM) and transverse-electric (TE) polarizations to NAs when the dimers orientation is parallel to the propagation direction of evanescent waves. Nature Publishing Group 2016-09-01 /pmc/articles/PMC5007468/ /pubmed/27581766 http://dx.doi.org/10.1038/srep32194 Text en Copyright © 2016, 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
Yang, Jhen-Hong
Chen, Kuo-Ping
Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas
title Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas
title_full Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas
title_fullStr Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas
title_full_unstemmed Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas
title_short Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas
title_sort evanescent wave-assisted symmetry breaking of gold dipolar nanoantennas
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5007468/
https://www.ncbi.nlm.nih.gov/pubmed/27581766
http://dx.doi.org/10.1038/srep32194
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