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dc.contributor.authorGongora, J. S. Totero
dc.contributor.authorFavraud, Gael
dc.contributor.authorFratalocchi, Andrea
dc.date.accessioned2017-02-15T08:32:15Z
dc.date.available2017-02-15T08:32:15Z
dc.date.issued2017-02-01
dc.identifier.citationTotero Gongora JS, Favraud G, Fratalocchi A (2017) Fundamental and high-order anapoles in all-dielectric metamaterials via Fano–Feshbach modes competition. Nanotechnology 28: 104001. Available: http://dx.doi.org/10.1088/1361-6528/aa593d.
dc.identifier.issn0957-4484
dc.identifier.issn1361-6528
dc.identifier.doi10.1088/1361-6528/aa593d
dc.identifier.urihttp://hdl.handle.net/10754/622894
dc.description.abstractOne of the most fascinating possibilities enabled by metamaterials is the strong reduction of the electromagnetic scattering from nanostructures. In dielectric nanoparticles, the formation of a minimal scattering state at specific wavelengths is associated with the excitation of photonic anapoles, which represent a peculiar type of radiationless state and whose existence has been demonstrated experimentally. In this work, we investigate the formation of anapole states in generic dielectric structures by applying a Fano-Feshbach projection scheme, a general technique widely used in the study of quantum mechanical open systems. By expressing the total scattering from the structure in terms of an orthogonal set of internal and external modes, defined in the interior and in the exterior of the dielectric structure, respectively, we show how anapole states are the result of a complex interaction among the resonances of the system and the surrounding environment. We apply our approach to a circular resonator, where we observe the formation of higher-order anapole states, which are originated by the superposition of several internal resonances of the system.
dc.publisherIOP Publishing
dc.relation.urlhttp://iopscience.iop.org/article/10.1088/1361-6528/aa593d/meta;jsessionid=106845CF98C266D8795D369681C1FC83.c1.iopscience.cld.iop.org
dc.subjectFeshbach projection
dc.subjectanapole modes
dc.subjectoptical invisibility
dc.subjectscattering theory
dc.subjecthigher-order anapoles
dc.titleFundamental and high-order anapoles in all-dielectric metamaterials via Fano–Feshbach modes competition
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentPRIMALIGHT Research Group
dc.identifier.journalNanotechnology
kaust.personGongora, J. S. Totero
kaust.personFavraud, Gael
kaust.personFratalocchi, Andrea
dc.date.published-online2017-02-01
dc.date.published-print2017-03-10


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