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Broadband forward light scattering by architectural design of core–shell silicon particles

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDE MARCO, Maria
hal.structure.identifierMcKetta Department of Chemical Engineering
dc.contributor.authorJIANG, Taizhi
hal.structure.identifierWalker Department of Chemical Engineering
dc.contributor.authorFANG, Jie
hal.structure.identifierBordeaux Imaging Center [BIC]
dc.contributor.authorLACOMME, Sabrina
hal.structure.identifierWalker Department of Chemical Engineering
dc.contributor.authorZHENG, Yuebing
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorBARON, Alexandre
hal.structure.identifierMcKetta Department of Chemical Engineering
dc.contributor.authorKORGEL, Brian
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.authorDRISKO, Glenna
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.created2021
dc.date.issued2021-02-19
dc.identifier.issn1616-301X
dc.description.abstractEnA goal in the field of nanoscale optics is the fabrication of nanostructures with strong directional light scattering at visible frequencies. Here, we demonstrate the synthesis of Mie-resonant coreshell particles with overlapping electric and magnetic dipole resonances in the visible spectrum. The core consists of silicon surrounded by a lower index silicon oxynitride (SiOxNy) shell with an adjustable thickness. Optical spectroscopies coupled to Mie theory calculations give the first experimental evidence that the relative position and intensity of the magnetic and electric dipole resonances are tuned by changing the core-shell architecture. Specifically, coating a high-index particle with a low-index shell coalesces the dipoles, while maintaining a high scattering efficiency, thus generating broadband forward scattering. This synthetic strategy opens a route towards metamaterial fabrication with unprecedented control over visible light manipulation.
dc.description.sponsorshipAdvanced Materials by Design - ANR-10-LABX-0042
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.description.sponsorshipDéveloppement d'une infrastructure française distribuée coordonnée - ANR-10-INBS-0004
dc.language.isoen
dc.publisherWiley
dc.subject.enVisible light silicon resonators
dc.subject.encore-shell
dc.subject.enHuygens sources
dc.subject.endirectional light scattering
dc.title.enBroadband forward light scattering by architectural design of core–shell silicon particles
dc.typeArticle de revue
dc.identifier.doi10.1002/adfm.202100915
dc.subject.halChimie/Matériaux
bordeaux.journalAdvanced Functional Materials
bordeaux.page2100915 (11 p.)
bordeaux.volume31
bordeaux.issue26
bordeaux.peerReviewedoui
hal.identifierhal-03188905
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03188905v1
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