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dc.creatorTanasković, Dragan
dc.creatorJakšić, Zoran
dc.creatorObradov, Marko
dc.creatorJakšić, Olga
dc.date.accessioned2019-01-30T17:47:25Z
dc.date.available2019-01-30T17:47:25Z
dc.date.issued2015
dc.identifier.issn1687-4110
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1807
dc.description.abstractAn important class of electromagnetic metamaterials are aperture-based metasurfaces. Examples include extraordinary optical transmission arrays and double fishnets with negative refractive index. We analyze a generalization of such metamaterials where a simple aperture is now replaced by a compound object formed by superposition of two or more primitive objects (e.g., rectangles, circles, and ellipses). Thus obtained "super unit cell" shows far richer behavior than the subobjects that comprise it. We show that nonlocalities introduced by overlapping simple subobjects can be used to produce large deviations of spectral dispersion even for small additive modifications of the basic geometry. Technologically, some super cellsmay be fabricated by simple spatial shifting of the existing photolithographic masks. In our investigation we applied analytical calculations and ab initio finite element modeling to prove the possibility to tailor the dispersion including resonances for plasmonic nanocomposites by adjusting the local geometry and exploiting localized interactions at a subwavelength level. Any desired form could be defined using simple primitive objects, making the situation a geometrical analog of the case of series expansion of a function. Thus an additional degree of tunability of metamaterials is obtained. The obtained designer structures can be applied in different fields like waveguiding and sensing.en
dc.publisherHindawi Limited
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/32008/RS//
dc.rightsopenAccess
dc.sourceJournal of Nanomaterials
dc.titleSuper Unit Cells in Aperture-Based Metamaterialsen
dc.typearticle
dc.rights.licenseBY
dcterms.abstractОбрадов, Марко; Јакшић, Олга; Танасковић, Драган; Јакшић, Зоран;
dc.citation.other
dc.citation.rankM22
dc.identifier.doi10.1155/2015/312064
dc.identifier.rcubrcub_1805
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs//bitstream/id/13580/1805.pdf
dc.identifier.scopus2-s2.0-84937144457
dc.identifier.wos000349203900001
dc.type.versionpublishedVersion


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