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Elusive Pure Anapole Excitation in Homogenous Spherical Nanoparticles with Radial Anisotropy

Liu, Wei; Lei, Bing; Shi, Jianhua; Hu, HaoJun; Miroshnichenko, Andrey

Description

For homogenous isotropic dielectric nanospheres with incident plane waves, Cartesian electric and toroidal dipoles can be tunned to cancel each other in terms of far-field scattering, leading to the effective anopole excitation. At the same time however, other multipoles such as magnetic dipoles with comparable scattered power are simultanesouly excited, mixing with the anopole and leading to a nonnegligible total scattering cross-section. Here, we show that, for homogenous dielectric...[Show more]

dc.contributor.authorLiu, Wei
dc.contributor.authorLei, Bing
dc.contributor.authorShi, Jianhua
dc.contributor.authorHu, HaoJun
dc.contributor.authorMiroshnichenko, Andrey
dc.date.accessioned2018-11-29T22:55:45Z
dc.date.available2018-11-29T22:55:45Z
dc.identifier.issn1687-4110
dc.identifier.urihttp://hdl.handle.net/1885/153271
dc.description.abstractFor homogenous isotropic dielectric nanospheres with incident plane waves, Cartesian electric and toroidal dipoles can be tunned to cancel each other in terms of far-field scattering, leading to the effective anopole excitation. At the same time however, other multipoles such as magnetic dipoles with comparable scattered power are simultanesouly excited, mixing with the anopole and leading to a nonnegligible total scattering cross-section. Here, we show that, for homogenous dielectric nanospheres, radial anisotropy can be employed to significantly suppress the other multipole excitation, which at the same time does not compromise the property of complete scattering cancallation between Cartesian electric and toroidal dipoles. This enables an elusive pure anopole excitation within radially anisotropic dielectric nanospheres, which may shed new light on many scattering related fundamental researches and applications.
dc.format.mimetypeapplication/pdf
dc.publisherHindawi Publishing Corporation
dc.sourceJournal of Nanomaterials
dc.titleElusive Pure Anapole Excitation in Homogenous Spherical Nanoparticles with Radial Anisotropy
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume2015
dc.date.issued2015
local.identifier.absfor020300 - CLASSICAL PHYSICS
local.identifier.absfor020500 - OPTICAL PHYSICS
local.identifier.ariespublicationU3488905xPUB8395
local.type.statusPublished Version
local.contributor.affiliationLiu, Wei, National University of Defense Technology
local.contributor.affiliationLei, Bing, National University of Defense Technology,
local.contributor.affiliationShi, Jianhua, National University of Defense Technology,
local.contributor.affiliationHu, HaoJun, National University of Defense Technology,
local.contributor.affiliationMiroshnichenko, Andrey, College of Science, ANU
local.bibliographicCitation.startpage672957/1
local.bibliographicCitation.lastpage7
local.identifier.doi10.1155/2015/672957
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2018-11-29T08:07:59Z
local.identifier.scopusID2-s2.0-84948808698
local.identifier.thomsonID000365535700001
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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