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Q-factor and absorption enhancement for plasmonic anisotropic nanoparticles

Liu, Wei; Lei, Bing; Miroshnichenko, Andrey

Description

We investigate the scattering and absorption properties of anisotropic metal-dielectric core-shell nanoparticles. It is revealed that the radially anisotropic dielectric layer can accelerate the evanescent decay of the localized resonant surface modes, leading to Q-factor and absorption rate enhancement. Moreover, the absorption cross section can be maximized to reach the single resonance absorption limit. We further show that such artificial anisotropic cladding materials can be realized by...[Show more]

dc.contributor.authorLiu, Wei
dc.contributor.authorLei, Bing
dc.contributor.authorMiroshnichenko, Andrey
dc.date.accessioned2016-08-22T02:05:42Z
dc.date.available2016-08-22T02:05:42Z
dc.identifier.issn0146-9592
dc.identifier.urihttp://hdl.handle.net/1885/107249
dc.description.abstractWe investigate the scattering and absorption properties of anisotropic metal-dielectric core-shell nanoparticles. It is revealed that the radially anisotropic dielectric layer can accelerate the evanescent decay of the localized resonant surface modes, leading to Q-factor and absorption rate enhancement. Moreover, the absorption cross section can be maximized to reach the single resonance absorption limit. We further show that such artificial anisotropic cladding materials can be realized by isotropic layered structures, which may inspire many applications based on scattering and absorption of plasmonic nanoparticles.
dc.description.sponsorshipWe thank D. A. Powell, D. N. Neshev, and Yuri S. Kivshar for useful discussions, and acknowledge the financial support from the National Natural Science Foundation of China (Grant number: 11404403), the Australian Research Council, and the Basic Research Scheme of College of Optoelectronic Science and Engineering, National University of Defense Technology.
dc.format4 pages
dc.publisherOptical Society of America
dc.rights© 2016 Optical Society of America
dc.sourceOptics letters
dc.subjectScattering
dc.subjectParticles
dc.subjectSurface plasmons
dc.subjectAnisotropic optical materials
dc.titleQ-factor and absorption enhancement for plasmonic anisotropic nanoparticles
dc.typeJournal article
local.identifier.citationvolume41
dcterms.dateAccepted2016-07-03
dc.date.issued2016-08-01
local.publisher.urlhttp://www.osa.org/
local.type.statusPublished Version
local.contributor.affiliationMiroshnichenko, Andrey E., Nonlinear Physics Centre, CPMS Research School of Physics and Engineering, The Australian National University
local.identifier.essn1539-4794
local.bibliographicCitation.issue15
local.bibliographicCitation.startpage3563
local.bibliographicCitation.lastpage3566
local.identifier.doi10.1364/OL.41.003563
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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