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Off-resonance field enhancement by spherical nanoshells

Miroshnichenko, Andrey

Description

We study light scattering by spherical nanoshells consisting of metal-dielectric composites. We consider several geometries of nanoshell particles with dielectric and metallic cores. We demonstrate that in all studied cases the local field enhancement takes place in out-of-resonance regions ("dark states"), which nevertheless can be understood in terms of the Fano resonance. At optimal conditions the light is mostly localized inside the dielectric material and the enhancement factor up to four...[Show more]

dc.contributor.authorMiroshnichenko, Andrey
dc.date.accessioned2015-12-10T22:30:26Z
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/1885/55091
dc.description.abstractWe study light scattering by spherical nanoshells consisting of metal-dielectric composites. We consider several geometries of nanoshell particles with dielectric and metallic cores. We demonstrate that in all studied cases the local field enhancement takes place in out-of-resonance regions ("dark states"), which nevertheless can be understood in terms of the Fano resonance. At optimal conditions the light is mostly localized inside the dielectric material and the enhancement factor up to four orders of magnitude is achieved for subwavelength coating. Using nonlinear dielectric materials will lead to a variety of nonlinear phenomena applicable for photonics applications.
dc.publisherAmerican Physical Society
dc.sourcePhysical Review A: Atomic, Molecular and Optical Physics
dc.subjectKeywords: Dark state; Enhancement factor; Fano resonances; Four-order; Local field enhancement; Metal-dielectric composites; Metallic cores; Nanoshells; Non-linear phenomena; Nonlinear dielectric materials; Off-resonance; Optimal conditions; Photonics applications;
dc.titleOff-resonance field enhancement by spherical nanoshells
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume81
dc.date.issued2010
local.identifier.absfor020501 - Classical and Physical Optics
local.identifier.ariespublicationu9201385xPUB318
local.type.statusPublished Version
local.contributor.affiliationMiroshnichenko, Andrey, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue053818
local.bibliographicCitation.startpage5
local.identifier.doi10.1103/PhysRevA.81.053818
dc.date.updated2016-02-24T11:50:08Z
local.identifier.scopusID2-s2.0-77952351234
local.identifier.thomsonID000278140000179
CollectionsANU Research Publications

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