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dc.contributor.authorMann, C-R
dc.contributor.authorHorsley, SAR
dc.contributor.authorMariani, E
dc.date.accessioned2020-08-05T15:55:43Z
dc.date.issued2020-09-14
dc.description.abstractPseudo-magnetic fields generated in artificially strained lattices have enabled the emulation of exotic phenomena once thought to be exclusive to charged particles. However, to date, they have failed to emulate the tunability of real magnetic fields because they are determined solely by the engineered strain configuration, rendering them fixed by design. Here, we unveil a new universal mechanism to tune pseudo-magnetic fields for polaritons supported by a strained honeycomb metasurface composed of interacting dipole emitters/antennas. Without altering the strain configuration, we show that one can tune the pseudo-magnetic field strength by modifying the surrounding electromagnetic environment via an enclosing cavity waveguide, which modifies the nature of the dipole-dipole interactions. Remarkably, due to the competition between short-range Coulomb interactions and long-range photon-mediated interactions, the pseudo-magnetic field can be entirely switched off at a critical cavity width, without removing the strain. Consequently, by varying only the cavity width, we demonstrate a tunable Lorentz-like force that can be switched on/off and a collapse and revival of polariton Landau levels. Unlocking this tunable pseudo-magnetism poses new intriguing questions beyond the paradigm of conventional tight-binding physics.en_GB
dc.description.sponsorshipEngineering and Physical Sciences Research Council (EPSRC)en_GB
dc.description.sponsorshipRoyal Societyen_GB
dc.identifier.citationPublished online 14 September 2020en_GB
dc.identifier.doi10.1038/s41566-020-0688-8
dc.identifier.grantnumberEP/L015331/1en_GB
dc.identifier.grantnumberRPG-2016-186en_GB
dc.identifier.grantnumberIEC/R2/192166en_GB
dc.identifier.urihttp://hdl.handle.net/10871/122342
dc.language.isoenen_GB
dc.publisherNature Researchen_GB
dc.rights.embargoreasonUnder embargo until 14 March 2021 in compliance with publisher policyen_GB
dc.titleTunable pseudo-magnetic fields for polaritons in strained metasurfacesen_GB
dc.typeArticleen_GB
dc.date.available2020-08-05T15:55:43Z
dc.identifier.issn1749-4885
dc.descriptionThis is the author accepted manuscript. The final version is available from Nature Research via the DOI in this recorden_GB
dc.descriptionData availability: All relevant data are available from the corresponding authors upon reasonable request.en_GB
dc.identifier.journalNature Photonicsen_GB
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserveden_GB
dc.rights.uri© The Author(s), under exclusive licence to Springer Nature Limited 2020
dcterms.dateAccepted2020-08-04
exeter.funder::Engineering and Physical Sciences Research Council (EPSRC)en_GB
rioxxterms.versionAMen_GB
rioxxterms.licenseref.startdate2020-08-04
rioxxterms.typeJournal Article/Reviewen_GB
refterms.dateFCD2020-08-05T15:20:46Z
refterms.versionFCDAM
refterms.panelBen_GB


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