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Circular dichroism from Fano resonances in planar chiral oligomers

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Hopkins, Ben; Poddubny, Alexander N; Miroshnichenko, Andrey; Kivshar, Yuri

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Here we present a general approach for describing the physics of Fano resonances in nanoparticle oligomers. It is shown that the interference of nonorthogonal collective eigenmodes is a sufficient condition to produce Fano resonances. We then show that such nonorthogonality between eigenmodes also permits the existence of a new form circular dichroism in the absorption and scattering cross-sections, even when circular dichroism is forbidden in the extinction cross-section.

dc.contributor.authorHopkins, Ben
dc.contributor.authorPoddubny, Alexander N
dc.contributor.authorMiroshnichenko, Andrey
dc.contributor.authorKivshar, Yuri
dc.coverage.spatialPrague, Czech Republic
dc.date.accessioned2018-11-30T01:19:51Z
dc.date.available2018-11-30T01:19:51Z
dc.date.createdApril 15-16, 2015
dc.identifier.isbn9781628416237
dc.identifier.urihttp://hdl.handle.net/1885/154212
dc.description.abstractHere we present a general approach for describing the physics of Fano resonances in nanoparticle oligomers. It is shown that the interference of nonorthogonal collective eigenmodes is a sufficient condition to produce Fano resonances. We then show that such nonorthogonality between eigenmodes also permits the existence of a new form circular dichroism in the absorption and scattering cross-sections, even when circular dichroism is forbidden in the extinction cross-section.
dc.format.mimetypeapplication/pdf
dc.publisherSociety of Photo-Optical Instrumentation Engineers
dc.relation.ispartofseries10th SPIE Conference on Metamaterials
dc.sourceProceedings of SPIE - The International Society for Optical Engineering
dc.titleCircular dichroism from Fano resonances in planar chiral oligomers
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2015
local.identifier.absfor020300 - CLASSICAL PHYSICS
local.identifier.absfor020500 - OPTICAL PHYSICS
local.identifier.ariespublicationU3488905xPUB6420
local.type.statusPublished Version
local.contributor.affiliationHopkins, Ben, College of Science, ANU
local.contributor.affiliationPoddubny, Alexander N, St Petersburg National Research University of Information Technologies
local.contributor.affiliationMiroshnichenko, Andrey, College of Science, ANU
local.contributor.affiliationKivshar, Yuri, College of Science, ANU
local.bibliographicCitation.startpage95020Q /1
local.bibliographicCitation.lastpage5
local.identifier.doi10.1117/12.2183280
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2018-11-29T08:22:44Z
local.identifier.scopusID2-s2.0-84943370241
local.identifier.thomsonID000356617400014
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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