Plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement

Plasmonic nanocavity arrays were achieved by producing isolated silver semi-cylindrical nanoshells periodically on a continuous planar gold film. Hybridization between localized surface plasmon resonance (LSPR) in the Ag semi-cylindrical nanoshells (SCNS) and surface plasmon polaritons (SPP) in the...

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Autores principales: Liu, Feifei, Zhang, Xinping, Fang, Xiaohui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5225429/
https://www.ncbi.nlm.nih.gov/pubmed/28074853
http://dx.doi.org/10.1038/srep40071
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author Liu, Feifei
Zhang, Xinping
Fang, Xiaohui
author_facet Liu, Feifei
Zhang, Xinping
Fang, Xiaohui
author_sort Liu, Feifei
collection PubMed
description Plasmonic nanocavity arrays were achieved by producing isolated silver semi-cylindrical nanoshells periodically on a continuous planar gold film. Hybridization between localized surface plasmon resonance (LSPR) in the Ag semi-cylindrical nanoshells (SCNS) and surface plasmon polaritons (SPP) in the gold film was observed as split bonding and anti-bonding resonance modes located at different spectral positions. This led to strong local field enhancement and confinement in the plano-concave nanocavites. Narrow-band optical extinction with an amplitude as high as 1.5 OD, corresponding to 97% reduction in the transmission, was achieved in the visible spectrum. The resonance spectra of this hybrid device can be extended from the visible to the near infrared by adjusting the structural parameters.
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spelling pubmed-52254292017-01-17 Plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement Liu, Feifei Zhang, Xinping Fang, Xiaohui Sci Rep Article Plasmonic nanocavity arrays were achieved by producing isolated silver semi-cylindrical nanoshells periodically on a continuous planar gold film. Hybridization between localized surface plasmon resonance (LSPR) in the Ag semi-cylindrical nanoshells (SCNS) and surface plasmon polaritons (SPP) in the gold film was observed as split bonding and anti-bonding resonance modes located at different spectral positions. This led to strong local field enhancement and confinement in the plano-concave nanocavites. Narrow-band optical extinction with an amplitude as high as 1.5 OD, corresponding to 97% reduction in the transmission, was achieved in the visible spectrum. The resonance spectra of this hybrid device can be extended from the visible to the near infrared by adjusting the structural parameters. Nature Publishing Group 2017-01-11 /pmc/articles/PMC5225429/ /pubmed/28074853 http://dx.doi.org/10.1038/srep40071 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
Liu, Feifei
Zhang, Xinping
Fang, Xiaohui
Plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement
title Plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement
title_full Plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement
title_fullStr Plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement
title_full_unstemmed Plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement
title_short Plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement
title_sort plasmonic plano-semi-cylindrical nanocavities with high-efficiency local-field confinement
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5225429/
https://www.ncbi.nlm.nih.gov/pubmed/28074853
http://dx.doi.org/10.1038/srep40071
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AT fangxiaohui plasmonicplanosemicylindricalnanocavitieswithhighefficiencylocalfieldconfinement

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