Collective multimode strong coupling in plasmonic nanocavities

Plasmonic nanocavities enable access to the quantum properties of matter but are often simplified to single mode models despite their complex multimode structure. Here, we show that off-resonant plasmonic modes in fact play a crucial role in strong coupling and determine the onset of a novel collect...

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Main Authors: Crookes Angus, Yuen Ben, Demetriadou Angela
Format: Article
Language:English
Published: De Gruyter 2025-03-01
Series:Nanophotonics
Subjects:
Online Access:https://doi.org/10.1515/nanoph-2024-0618
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author Crookes Angus
Yuen Ben
Demetriadou Angela
author_facet Crookes Angus
Yuen Ben
Demetriadou Angela
author_sort Crookes Angus
collection DOAJ
description Plasmonic nanocavities enable access to the quantum properties of matter but are often simplified to single mode models despite their complex multimode structure. Here, we show that off-resonant plasmonic modes in fact play a crucial role in strong coupling and determine the onset of a novel collective interaction. Our analysis reveals that n strongly coupled plasmonic modes introduce up to n(n + 1)/2 oscillation frequencies that depend on their coupling strengths and detuning’s from the quantum emitter. Furthermore, we identify three distinct regions as the coupling strength increases: (1) single mode, (2) multimode and (3) collective multimode strong coupling. Our findings enhance the understanding of quantum dynamics in realistic plasmonic environments and demonstrate their potential to achieve ultra-fast energy transfer in light-driven quantum technologies.
format Article
id doaj-art-c1b778e4840648e7b25e97c47cb823db
institution DOAJ
issn 2192-8614
language English
publishDate 2025-03-01
publisher De Gruyter
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series Nanophotonics
spelling doaj-art-c1b778e4840648e7b25e97c47cb823db2025-08-20T02:40:18ZengDe GruyterNanophotonics2192-86142025-03-0114112065207310.1515/nanoph-2024-0618Collective multimode strong coupling in plasmonic nanocavitiesCrookes Angus0Yuen Ben1Demetriadou Angela2School of Physics and Astronomy, 1724University of Birmingham, B15 2TTBirmingham, UKSchool of Physics and Astronomy, 1724University of Birmingham, B15 2TTBirmingham, UKSchool of Physics and Astronomy, 1724University of Birmingham, B15 2TTBirmingham, UKPlasmonic nanocavities enable access to the quantum properties of matter but are often simplified to single mode models despite their complex multimode structure. Here, we show that off-resonant plasmonic modes in fact play a crucial role in strong coupling and determine the onset of a novel collective interaction. Our analysis reveals that n strongly coupled plasmonic modes introduce up to n(n + 1)/2 oscillation frequencies that depend on their coupling strengths and detuning’s from the quantum emitter. Furthermore, we identify three distinct regions as the coupling strength increases: (1) single mode, (2) multimode and (3) collective multimode strong coupling. Our findings enhance the understanding of quantum dynamics in realistic plasmonic environments and demonstrate their potential to achieve ultra-fast energy transfer in light-driven quantum technologies.https://doi.org/10.1515/nanoph-2024-0618quantumplasmonicsmultimodestrong couplingnanocavitiescavity qed
spellingShingle Crookes Angus
Yuen Ben
Demetriadou Angela
Collective multimode strong coupling in plasmonic nanocavities
Nanophotonics
quantum
plasmonics
multimode
strong coupling
nanocavities
cavity qed
title Collective multimode strong coupling in plasmonic nanocavities
title_full Collective multimode strong coupling in plasmonic nanocavities
title_fullStr Collective multimode strong coupling in plasmonic nanocavities
title_full_unstemmed Collective multimode strong coupling in plasmonic nanocavities
title_short Collective multimode strong coupling in plasmonic nanocavities
title_sort collective multimode strong coupling in plasmonic nanocavities
topic quantum
plasmonics
multimode
strong coupling
nanocavities
cavity qed
url https://doi.org/10.1515/nanoph-2024-0618
work_keys_str_mv AT crookesangus collectivemultimodestrongcouplinginplasmonicnanocavities
AT yuenben collectivemultimodestrongcouplinginplasmonicnanocavities
AT demetriadouangela collectivemultimodestrongcouplinginplasmonicnanocavities