Cargando…
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....
Autores principales: | , , |
---|---|
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 |
_version_ | 1783511576403247104 |
---|---|
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. |
format | Online Article Text |
id | pubmed-7101229 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT youjianwei fourwavemixingoftopologicaledgeplasmonsingraphenemetasurfaces AT lanzhihao fourwavemixingoftopologicaledgeplasmonsingraphenemetasurfaces AT panoiunicolaec fourwavemixingoftopologicaledgeplasmonsingraphenemetasurfaces |