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Splitting of magnetic dipole modes in anisotropic TiO2 micro-spheres

hal.structure.identifierKing‘s College London
hal.structure.identifierITMO University [Russia]
hal.structure.identifierUniversity College of London [London] [UCL]
dc.contributor.authorKHROMOVA, Irina
hal.structure.identifierInstitute of Physics [Prague]
dc.contributor.authorKUŽEL, Petr
hal.structure.identifierCenter for Integrated Nanotechnologies
hal.structure.identifierSandia National Laboratories [Albuquerque] [SNL]
dc.contributor.authorBRENER, Igal
hal.structure.identifierCenter for Integrated Nanotechnologies
hal.structure.identifierSandia National Laboratories [Albuquerque] [SNL]
dc.contributor.authorRENO, John L.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHUNG SEU, U-Chan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorELISSALDE, Catherine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAGLIONE, Mario
hal.structure.identifierLaboratoire de l'intégration, du matériau au système [IMS]
dc.contributor.authorMOUNAIX, Patrick
hal.structure.identifierCenter for Integrated Nanotechnologies
hal.structure.identifierUniversity College of London [London] [UCL]
dc.contributor.authorMITROFANOV, Oleg
dc.date.issued2016
dc.identifier.issn1863-8880
dc.description.abstractEnMonocrystalline titanium dioxide (TiO2) micro-spheres support two orthogonal magnetic dipole modes at terahertz (THz) frequencies due to strong dielectric anisotropy. For the first time, we experimentally detected the splitting of the first Mie mode in spheres of radii inline imagem through near-field time-domain THz spectroscopy. By fitting the Fano lineshape model to the experimentally obtained spectra of the electric field detected by the sub-wavelength aperture probe, we found that the magnetic dipole resonances in TiO2 spheres have narrow linewidths of only tens of gigahertz. Anisotropic TiO2 micro-resonators can be used to enhance the interplay of magnetic and electric dipole resonances in the emerging THz all-dielectric metamaterial technology.
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.title.enSplitting of magnetic dipole modes in anisotropic TiO2 micro-spheres
dc.typeArticle de revue
dc.identifier.doi10.1002/lpor.201600084
dc.subject.halChimie/Matériaux
bordeaux.journalLaser and Photonics Reviews
bordeaux.page681-687
bordeaux.volume10
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-01370336
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01370336v1
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