Polaritonic nonlocality in light-matter interaction
Polaritonic nonlocality in light-matter interaction
Sub-wavelength electromagnetic field localization has been central in photonic research in the last decade, allowing to enhance sensing capabilities as well as increasing the coupling between photons and material excitations. The strong and ultrastrong light-matter coupling regime in the THz range with split-ring resonators coupled to magnetoplasmons has been widely investigated, achieving successive world-records for the largest light-matter coupling ever achieved Ever shrinking resonators have allowed to approach the regime of few electrons strong coupling, in which single-dipole properties can be modified by the vacuum field.
Here we demonstrate, theoretically and experimentally, the existence of a limit to the possibility of arbitrarily increasing electromagnetic confinement in polaritonic systems. Strongly sub-wavelength fields can excite a continuum of high-momenta propagative magnetoplasmons. This leads to peculiar nonlocal polaritonic effects, as certain polaritonic features disappear and the system enters in the regime of discrete-to-continuum strong coupling
ultrastrong coupling, non locality, Polaritons
690–695
Rajabali, Shima
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Cortese, Erika
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Beck, Mattias
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De Liberato, Simone
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Faist, Jerome
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Scalari, Giacomo
af1d74d0-ba4e-4bdf-b490-2ce84fb6ec6a
Rajabali, Shima
5d4f7cde-fedf-48b9-8a4e-b8094ac53b8d
Cortese, Erika
3a7d67d1-3321-40b2-91fa-2471dbed7147
Beck, Mattias
303654b1-b879-47b3-98d2-d719846400d5
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Faist, Jerome
0b732e4a-5ed3-4b87-b07a-bfc628a1195b
Scalari, Giacomo
af1d74d0-ba4e-4bdf-b490-2ce84fb6ec6a
Rajabali, Shima, Cortese, Erika, Beck, Mattias, De Liberato, Simone, Faist, Jerome and Scalari, Giacomo
(2021)
Polaritonic nonlocality in light-matter interaction.
Nature Photonics, .
(doi:10.1038/s41566-021-00854-3).
Abstract
Sub-wavelength electromagnetic field localization has been central in photonic research in the last decade, allowing to enhance sensing capabilities as well as increasing the coupling between photons and material excitations. The strong and ultrastrong light-matter coupling regime in the THz range with split-ring resonators coupled to magnetoplasmons has been widely investigated, achieving successive world-records for the largest light-matter coupling ever achieved Ever shrinking resonators have allowed to approach the regime of few electrons strong coupling, in which single-dipole properties can be modified by the vacuum field.
Here we demonstrate, theoretically and experimentally, the existence of a limit to the possibility of arbitrarily increasing electromagnetic confinement in polaritonic systems. Strongly sub-wavelength fields can excite a continuum of high-momenta propagative magnetoplasmons. This leads to peculiar nonlocal polaritonic effects, as certain polaritonic features disappear and the system enters in the regime of discrete-to-continuum strong coupling
Text
Polaritonic_nonlocality_in_light_matter_interaction
- Accepted Manuscript
More information
Accepted/In Press date: 4 May 2021
e-pub ahead of print date: 9 August 2021
Keywords:
ultrastrong coupling, non locality, Polaritons
Identifiers
Local EPrints ID: 448941
URI: http://eprints.soton.ac.uk/id/eprint/448941
ISSN: 1749-4885
PURE UUID: ac25c0bc-9973-4354-8ca3-867daf5d156d
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Date deposited: 11 May 2021 17:03
Last modified: 17 Mar 2024 06:33
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Contributors
Author:
Shima Rajabali
Author:
Mattias Beck
Author:
Jerome Faist
Author:
Giacomo Scalari
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