Graphene plasmonics: a platform for strong light-matter interactions
Graphene plasmonics: a platform for strong light-matter interactions
Plasmons in doped graphene exhibit relatively large confinement and long lifetime compared to noble-metal plasmons. Here, we study the propagation properties of plasmons guided along individual and interacting graphene nanoribbons. Besides their tunability via electrostatic gating, an additional handle to control these excitations is provided by the dielectric environment and the relative arrangement of the interacting waveguides. Plasmon interaction and hybridization in pairs of neighboring aligned ribbons are shown to be strong enough to produce dramatic modifications in the plasmon field profiles. We introduce a universal scaling law that considerably simplifies the analysis an understanding of these plasmons. Our work provides the building blocks to construct graphene plasmon circuits for future compact plasmon devices with potential application to optical signal processing, infrared sensing, and quantum information technology.
graphene, plasmons, strong light-matter interaction, quantum optics, vacuum rabi splitting
3370-3377
Koppens, Frank H.L.
258ec1c2-33b9-4bf9-a8db-295d9cea043a
Chang, Darrick E.
10caa703-f7f8-4fce-86b7-004c57adf58c
García de Abajo, F.Javier
fc4064a4-2922-4740-be9b-0e8012b6ee73
18 July 2011
Koppens, Frank H.L.
258ec1c2-33b9-4bf9-a8db-295d9cea043a
Chang, Darrick E.
10caa703-f7f8-4fce-86b7-004c57adf58c
García de Abajo, F.Javier
fc4064a4-2922-4740-be9b-0e8012b6ee73
Koppens, Frank H.L., Chang, Darrick E. and García de Abajo, F.Javier
(2011)
Graphene plasmonics: a platform for strong light-matter interactions.
Nano Letters, 11 (8), .
(doi:10.1021/nl201771h).
Abstract
Plasmons in doped graphene exhibit relatively large confinement and long lifetime compared to noble-metal plasmons. Here, we study the propagation properties of plasmons guided along individual and interacting graphene nanoribbons. Besides their tunability via electrostatic gating, an additional handle to control these excitations is provided by the dielectric environment and the relative arrangement of the interacting waveguides. Plasmon interaction and hybridization in pairs of neighboring aligned ribbons are shown to be strong enough to produce dramatic modifications in the plasmon field profiles. We introduce a universal scaling law that considerably simplifies the analysis an understanding of these plasmons. Our work provides the building blocks to construct graphene plasmon circuits for future compact plasmon devices with potential application to optical signal processing, infrared sensing, and quantum information technology.
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Published date: 18 July 2011
Keywords:
graphene, plasmons, strong light-matter interaction, quantum optics, vacuum rabi splitting
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 337293
URI: http://eprints.soton.ac.uk/id/eprint/337293
ISSN: 1530-6984
PURE UUID: acbf1de9-2fb3-485d-98af-c4377de49c5e
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Date deposited: 23 Apr 2012 10:42
Last modified: 14 Mar 2024 10:52
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Contributors
Author:
Frank H.L. Koppens
Author:
Darrick E. Chang
Author:
F.Javier García de Abajo
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