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dc.contributor.authorBalcı, Osman
dc.contributor.authorKakenov, Nurbek
dc.contributor.authorKarademir, Ertuğrul
dc.contributor.authorBalcı, Sinan
dc.contributor.authorÇakmakyapan, Semih
dc.contributor.authorPolat, Emre O.
dc.contributor.authorÇağlayan, Hümeyra
dc.contributor.authorÖzbay, Ekmel
dc.contributor.authorKocabaş, Çoşkun
dc.date.accessioned2019-12-19T07:38:18Z
dc.date.available2019-12-19T07:38:18Z
dc.date.issued2018-01en_US
dc.identifier.citationBalcı, O., Kakenov, N., Karademir, E., Balcı, S., Çakmakyapan, S., Polat, Emre O., Çağlayan, H., Özbay, E., and Kocabaş, Ç. (2018). Electrically switchable metadevices via graphene. Science Advances, 4(1). doi:10.1126/sciadv.aao1749en_US
dc.identifier.issn2375-2548
dc.identifier.urihttps://doi.org/10.1126/sciadv.aao1749
dc.identifier.urihttps://hdl.handle.net/11147/7502
dc.description.abstractMetamaterials bring subwavelength resonating structures together to overcome the limitations of conventional materials. The realization of active metadevices has been an outstanding challenge that requires electrically reconfigurable components operating over a broad spectrum with a wide dynamic range. However, the existing capability of metamaterials is not sufficient to realize this goal. By integrating passive metamaterials with active graphene devices, we demonstrate a new class of electrically controlled active metadevices working in microwave frequencies. The fabricated active metadevices enable efficient control of both amplitude (>50 dB) and phase (>90°) of electromagnetic waves. In this hybrid system, graphene operates as a tunable Drude metal that controls the radiation of the passive metamaterials. Furthermore, by integrating individually addressable arrays of metadevices, we demonstrate a new class of spatially varying digital metasurfaces where the local dielectric constant can be reconfigured with applied bias voltages. In addition, we reconfigure resonance frequency of split-ring resonators without changing its amplitude by damping one of the two coupled metasurfaces via graphene. Our approach is general enough to implement various metamaterial systems that could yield new applications ranging from electrically switchable cloaking devices to adaptive camouflage systems.en_US
dc.description.sponsorshipEuropean Research Council (ERC-682723); TUBITAK (114F052) and TUBITAK-BIDEB 2215en_US
dc.language.isoengen_US
dc.publisherAmerican Association for the Advancement of Scienceen_US
dc.relation.isversionof10.1126/sciadv.aao1749en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rightsAttribution-NonCommercial 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/us/*
dc.subjectElectromagnetic wavesen_US
dc.subjectGrapheneen_US
dc.subjectHybrid systemsen_US
dc.subjectMetamaterialsen_US
dc.titleElectrically switchable metadevices via grapheneen_US
dc.typearticleen_US
dc.contributor.authorID0000-0002-9809-8688en_US
dc.contributor.institutionauthorBalcı, Sinan
dc.relation.journalScience Advancesen_US
dc.contributor.departmentIzmir Institute of Technology. Photonicsen_US
dc.identifier.volume4en_US
dc.identifier.issue1en_US
dc.identifier.wosWOS:000426694200027
dc.identifier.scopusSCOPUS:2-s2.0-85042188904
dc.relation.tubitakinfo:eu-repo/grantAgreement/TUBITAK/MFAG/114F052en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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