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dc.creatorOrazbayev, Bakhtiyares_ES
dc.creatorBeruete Díaz, Migueles_ES
dc.creatorKhromova, Irinaes_ES
dc.identifier.issn1094-4087 (Electronic)
dc.description.abstractWe demonstrate tunable mid-infrared (MIR) beam steering devices based on multilayer graphene-dielectric metamaterials. The effective refractive index of such metamaterials can be manipulated by changing the chemical potential of each graphene layer. This can arbitrarily tailor the spatial distribution of the phase of the transmitted beam, providing mechanisms for active beam steering. Three different beam steerer (BS) designs are discussed: a graded-index (GRIN) graphene-based metamaterial block, an array of metallic waveguides filled with graphene-dielectric metamaterial and an array of planar waveguides created in a graphene-dielectric metamaterial block with a specific spatial profile of graphene sheets doping. The performances of the BSs are numerically analyzed, showing the tunability of the proposed designs for a wide range of output angles (up to approximately 70°). The proposed graphene-based tunable beam steering can be used in tunable transmitter/receiver modules for infrared imaging and sensing.en
dc.description.sponsorshipThis work was supported in part by the Spanish Government under Contract TEC2014- 51902-C2-2-R and the Government of the Russian Federation [Grant No. 074-U01]. B. O. is sponsored by the Spanish Ministerio de Economía y Competitividad under grant FPI BES- 2012-054909. M.B. is sponsored by the Spanish Government via RYC-2011-08221. I.K. is sponsored by the Russian Foundation for Basic Research under grant No. 14-07-31272.en
dc.publisherOptical Society of Americaen
dc.relation.ispartofOptics Express, Vol. 24, Issue 8, pp. 8848-8861 (2016)en
dc.rights© 2016 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.en
dc.subjectBeam steeringen
dc.titleTunable beam steering enabled by graphene metamaterialsen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentIngeniería Eléctrica y Electrónicaes_ES
dc.contributor.departmentIngeniaritza Elektrikoa eta Elektronikoaeu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.type.versionVersión publicada / Argitaratu den bertsioaes

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