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Four-wave mixing of topological edge plasmons in graphene metasurfaces

We study topologically protected four-wave mixing (FWM) interactions in a plasmonic metasurface consisting of a periodic array of nanoholes in a graphene sheet, which exhibits a wide topological bandgap at terahertz frequencies upon the breaking of time reversal symmetry by a static magnetic field....

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Detalles Bibliográficos
Autores principales: You, Jian Wei, Lan, Zhihao, Panoiu, Nicolae C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7101229/
https://www.ncbi.nlm.nih.gov/pubmed/32258407
http://dx.doi.org/10.1126/sciadv.aaz3910
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author You, Jian Wei
Lan, Zhihao
Panoiu, Nicolae C.
author_facet You, Jian Wei
Lan, Zhihao
Panoiu, Nicolae C.
author_sort You, Jian Wei
collection PubMed
description We study topologically protected four-wave mixing (FWM) interactions in a plasmonic metasurface consisting of a periodic array of nanoholes in a graphene sheet, which exhibits a wide topological bandgap at terahertz frequencies upon the breaking of time reversal symmetry by a static magnetic field. We demonstrate that due to the significant nonlinearity enhancement and large life time of graphene plasmons in specific configurations, a net gain of FWM interaction of plasmonic edge states located in the topological bandgap can be achieved with a pump power of less than 10 nW. In particular, we find that the effective nonlinear edge-waveguide coefficient is about γ ≃ 1.1 × 10(13) W(−1) m(−1), i.e., more than 10 orders of magnitude larger than that of commonly used, highly nonlinear silicon photonic nanowires. These findings could pave a new way for developing ultralow-power-consumption, highly integrated, and robust active photonic systems at deep-subwavelength scale for applications in quantum communications and information processing.
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spelling pubmed-71012292020-04-03 Four-wave mixing of topological edge plasmons in graphene metasurfaces You, Jian Wei Lan, Zhihao Panoiu, Nicolae C. Sci Adv Research Articles We study topologically protected four-wave mixing (FWM) interactions in a plasmonic metasurface consisting of a periodic array of nanoholes in a graphene sheet, which exhibits a wide topological bandgap at terahertz frequencies upon the breaking of time reversal symmetry by a static magnetic field. We demonstrate that due to the significant nonlinearity enhancement and large life time of graphene plasmons in specific configurations, a net gain of FWM interaction of plasmonic edge states located in the topological bandgap can be achieved with a pump power of less than 10 nW. In particular, we find that the effective nonlinear edge-waveguide coefficient is about γ ≃ 1.1 × 10(13) W(−1) m(−1), i.e., more than 10 orders of magnitude larger than that of commonly used, highly nonlinear silicon photonic nanowires. These findings could pave a new way for developing ultralow-power-consumption, highly integrated, and robust active photonic systems at deep-subwavelength scale for applications in quantum communications and information processing. American Association for the Advancement of Science 2020-03-27 /pmc/articles/PMC7101229/ /pubmed/32258407 http://dx.doi.org/10.1126/sciadv.aaz3910 Text en Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
You, Jian Wei
Lan, Zhihao
Panoiu, Nicolae C.
Four-wave mixing of topological edge plasmons in graphene metasurfaces
title Four-wave mixing of topological edge plasmons in graphene metasurfaces
title_full Four-wave mixing of topological edge plasmons in graphene metasurfaces
title_fullStr Four-wave mixing of topological edge plasmons in graphene metasurfaces
title_full_unstemmed Four-wave mixing of topological edge plasmons in graphene metasurfaces
title_short Four-wave mixing of topological edge plasmons in graphene metasurfaces
title_sort four-wave mixing of topological edge plasmons in graphene metasurfaces
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7101229/
https://www.ncbi.nlm.nih.gov/pubmed/32258407
http://dx.doi.org/10.1126/sciadv.aaz3910
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