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dc.creatorTanasković, Dragan
dc.creatorObradov, Marko
dc.creatorJakšić, Olga
dc.creatorJakšić, Zoran
dc.date.accessioned2019-01-30T17:50:41Z
dc.date.available2019-01-30T17:50:41Z
dc.date.issued2016
dc.identifier.issn1569-4410
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1967
dc.description.abstractNanoplasmonic devices are among the most sensitive chemical sensors, with sensitivities reaching the single-molecule level. An especially convenient class of such sensors is that based on metasurfaces with subwavelength nanoholes, examples being extraordinary optical transmission arrays and double fishnet structures. Such structures ensure operation both in transmission and reflection mode and ensure high sensitivities and excellent coupling with external readout. In this paper we consider the possibility to tailor the response of aperture-based sensor structures by modifying the geometry of nanoholes at the deep subwavelength level through ensuring controlled use of nonlocal effects. We investigate the case where nonlocality is achieved by modifying the basic metamaterial fishnet structure (a metal-dielectric-metal sandwich with rectangular openings) by superposing additional subwavelength patterns, ensuring the appearance of new optical modes. The obtained unit cell superstructure will have multiple tailorable spectral peaks that will increase the selectivity at different wavelengths. The finite elements method was used for simulations of the proposed structures. As an example, we applied our results to the case of a benzene sensor, showing that its spectral properties and selectivity can be tuned by modifying geometry at a deep subwavelength scale. The obtained custom-designed spectral selectivity is convenient for multianalyte chemical sensing using a single structure.en
dc.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/32008/RS//
dc.rightsrestrictedAccess
dc.sourcePhotonics and Nanostructures-Fundamentals and Applications
dc.subjectNanoplasmonicsen
dc.subjectDouble fishnet metamaterialsen
dc.subjectMetasurfacesen
dc.subjectChemical sensingen
dc.subjectSubwavelength aperturesen
dc.subjectElectromagnetic nonlocalityen
dc.subjectSurface plasmons polaritonsen
dc.titleNonlocal effects in double fishnet metasurfaces nanostructured at deep subwavelength level as a path toward simultaneous sensing of multiple chemical analytesen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractТанасковић, Драган; Јакшић, Зоран; Јакшић, Олга; Обрадов, Марко;
dc.citation.volume18
dc.citation.spage36
dc.citation.epage42
dc.citation.other18: 36-42
dc.citation.rankM22
dc.identifier.doi10.1016/j.photonics.2015.12.003
dc.identifier.rcubConv_3502
dc.identifier.scopus2-s2.0-84957715411
dc.identifier.wos000371361500006
dc.type.versionpublishedVersion


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