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High optical magnetism of dodecahedral plasmonic meta-atoms

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorMANY, Véronique
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorDEZERT, Romain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUGUET, Etienne
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorBARON, Alexandre
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorJANGID, Vikas
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorPONSINET, Virginie
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorRAVAINE, Serge
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorRICHETTI, Philippe
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorBAROIS, Philippe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTRÉGUER-DELAPIERRE, Mona
dc.date.issued2019
dc.identifier.issn2192-8614
dc.description.abstractEnThe generation in artificial composites of a magnetic response to light, comparable in magnitude with the natural electric response, may offer an invaluable control parameter for a fine steering of light at the nanoscale. In many experimental realizations, however, the magnetic response of artificial meta-atoms is too weak so that there is a need for new designs with increased magnetic polarizability. Numerical simulations show that geometrical plasmonic nanostructures based on Platonic solids are excellent candidates for the production of strong optical magnetism in visible light. Inspired by these models, we report a bottom-up approach to synthesize plasmonic nanoclusters made of 12 gold patches located at the center of the faces of a dodecahedron. The scattering of the electric and magnetic dipole induced by light is measured across the whole visible range. The ratio of the magnetic to electric response at resonance is found three times higher than its counterpart measured on disordered plasmonic clusters (“plasmonic raspberries”) of the same size. Numerical simulations confirm the experimental measurements of the magnetic response.
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.language.isoen
dc.publisherDe Gruyter
dc.subject.enoptical magnetism
dc.subject.enplasmonic raspberries
dc.subject.enplasmonics
dc.subject.enmeta-atoms
dc.subject.engold dodecapods
dc.title.enHigh optical magnetism of dodecahedral plasmonic meta-atoms
dc.typeArticle de revue
dc.identifier.doi10.1515/nanoph-2018-0175
dc.subject.halChimie/Matériaux
dc.identifier.arxiv1903.08958
bordeaux.journalNanophotonics
bordeaux.page549-558
bordeaux.volume8
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-02102582
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02102582v1
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