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Scattering of core-shell nanowires with the interference of electric and magnetic resonances

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Liu, Wei; Oulton, Rupert F; Neshev, Dragomir; Hess, Ortwin; Miroshnichenko, Andrey; Kivshar, Yuri

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We study the scattering of normally incident waves by core-shell nanowires, which support both electric and magnetic resonances. Within such nanowires, for p-polarized incident waves, each electric resonance corresponds to two degenerate scattering channels while the magnetic resonance corresponds to only one channel. Consequently, when the electric dipole (ED) and magnetic dipole (MD) are tuned to overlap spectrally, the magnitude of the ED is twice that of the magnetic one, leading to a pair...[Show more]

dc.contributor.authorLiu, Wei
dc.contributor.authorOulton, Rupert F
dc.contributor.authorNeshev, Dragomir
dc.contributor.authorHess, Ortwin
dc.contributor.authorMiroshnichenko, Andrey
dc.contributor.authorKivshar, Yuri
dc.date.accessioned2016-05-11T00:25:20Z
dc.date.available2016-05-11T00:25:20Z
dc.identifier.issn0146-9592
dc.identifier.urihttp://hdl.handle.net/1885/101201
dc.description.abstractWe study the scattering of normally incident waves by core-shell nanowires, which support both electric and magnetic resonances. Within such nanowires, for p-polarized incident waves, each electric resonance corresponds to two degenerate scattering channels while the magnetic resonance corresponds to only one channel. Consequently, when the electric dipole (ED) and magnetic dipole (MD) are tuned to overlap spectrally, the magnitude of the ED is twice that of the magnetic one, leading to a pair of angles of vanishing scattering. We further demonstrate that the scattering features of nanowires are polarization dependent, and vanishing scattering angles also can be induced by Fano resonances due to the interference of higher-order electric modes with the broad MD mode.
dc.description.sponsorshipWe thank S. Deng for useful discussions and acknowledge support from the Australian Research Council and the Leverhulme Trust.
dc.publisherOptical Society of America
dc.rights© 2013 Optical Society of America. Publisher permission to archive the version was granted via the email on 13/05/2015
dc.sourceOptics letters
dc.subjectKeywords: Core-shell nanowires; Electric dipole; Electric resonance; Fano resonances; Incident waves; Magnetic dipole; Scattering angles; Scattering channels; Electrolytic analysis; Magnetic resonance; Nanowires; Scattering
dc.titleScattering of core-shell nanowires with the interference of electric and magnetic resonances
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume38
dc.date.issued2013-07-15
local.identifier.absfor020500
local.identifier.absfor090600
local.identifier.ariespublicationf5625xPUB3678
local.publisher.urlhttp://www.osa.org/en-us/home/
local.type.statusAccepted Version
local.contributor.affiliationWei, Liu, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.contributor.affiliationMiroshnichenko, Andrey, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.contributor.affiliationOulton, Rupert F, Imperial College London, United Kingdom
local.contributor.affiliationNeshev, Dragomir, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.contributor.affiliationHess, Ortwin, Imperial College London, United Kingdom
local.contributor.affiliationKivshar, Yuri, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Nonlinear Physics Centre, The Australian National University
local.identifier.essn1539-4794
local.bibliographicCitation.issue14
local.bibliographicCitation.startpage2621
local.bibliographicCitation.lastpage2624
local.identifier.doi10.1364/OL.38.002621
dc.date.updated2016-06-14T08:36:17Z
local.identifier.scopusID2-s2.0-84880515762
local.identifier.thomsonID000321770900078
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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