Plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling

Abstract Achieving and controlling strong light-matter interactions in many-body systems is of paramount importance both for fundamental understanding and potential applications. In this paper we demonstrate both experimentally and theoretically how to manipulate strong coupling between the Bragg-pl...

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Autores principales:	Pierre Fauché, Christian Gebhardt, Maxim Sukharev, Renaud A. L. Vallée
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2931868d089f48b090835e8b4fd95236
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spelling	oai:doaj.org-article:2931868d089f48b090835e8b4fd952362021-12-02T11:40:14ZPlasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling10.1038/s41598-017-03305-82045-2322https://doaj.org/article/2931868d089f48b090835e8b4fd952362017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03305-8https://doaj.org/toc/2045-2322Abstract Achieving and controlling strong light-matter interactions in many-body systems is of paramount importance both for fundamental understanding and potential applications. In this paper we demonstrate both experimentally and theoretically how to manipulate strong coupling between the Bragg-plasmon mode supported by an organo-metallic array and molecular excitons in the form of J-aggregates dispersed on the hybrid structure. We observe experimentally the transition from a conventional strong coupling regime exhibiting the usual upper and lower polaritonic branches to a more complex regime, where a third nondispersive mode is seen, as the concentration of J-aggregates is increased. The numerical simulations confirm the presence of the third resonance. We attribute its physical nature to collective molecule-molecule interactions leading to a collective electromagnetic response. A simple analytical model is proposed to explain the physics of the third mode. The nonlinear dependence on molecular parameters followed from the model are confirmed in a set of rigorous numerical studies. It is shown that at the energy of the collective mode molecules oscillate completely out of phase with the incident radiation acting as an effictive thin metal layer.Pierre FauchéChristian GebhardtMaxim SukharevRenaud A. L. ValléeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pierre Fauché Christian Gebhardt Maxim Sukharev Renaud A. L. Vallée Plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling
description	Abstract Achieving and controlling strong light-matter interactions in many-body systems is of paramount importance both for fundamental understanding and potential applications. In this paper we demonstrate both experimentally and theoretically how to manipulate strong coupling between the Bragg-plasmon mode supported by an organo-metallic array and molecular excitons in the form of J-aggregates dispersed on the hybrid structure. We observe experimentally the transition from a conventional strong coupling regime exhibiting the usual upper and lower polaritonic branches to a more complex regime, where a third nondispersive mode is seen, as the concentration of J-aggregates is increased. The numerical simulations confirm the presence of the third resonance. We attribute its physical nature to collective molecule-molecule interactions leading to a collective electromagnetic response. A simple analytical model is proposed to explain the physics of the third mode. The nonlinear dependence on molecular parameters followed from the model are confirmed in a set of rigorous numerical studies. It is shown that at the energy of the collective mode molecules oscillate completely out of phase with the incident radiation acting as an effictive thin metal layer.
format	article
author	Pierre Fauché Christian Gebhardt Maxim Sukharev Renaud A. L. Vallée
author_facet	Pierre Fauché Christian Gebhardt Maxim Sukharev Renaud A. L. Vallée
author_sort	Pierre Fauché
title	Plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling
title_short	Plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling
title_full	Plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling
title_fullStr	Plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling
title_full_unstemmed	Plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling
title_sort	plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/2931868d089f48b090835e8b4fd95236
work_keys_str_mv	AT pierrefauche plasmonicopalsobservationofacollectivemolecularexcitonmodebeyondthestrongcoupling AT christiangebhardt plasmonicopalsobservationofacollectivemolecularexcitonmodebeyondthestrongcoupling AT maximsukharev plasmonicopalsobservationofacollectivemolecularexcitonmodebeyondthestrongcoupling AT renaudalvallee plasmonicopalsobservationofacollectivemolecularexcitonmodebeyondthestrongcoupling
_version_	1718395631177826304

Plasmonic opals: observation of a collective molecular exciton mode beyond the strong coupling

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