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dc.creatorKuznetsov, Sergei A.es_ES
dc.creatorAstafev, Mikhail A.es_ES
dc.creatorBeruete Díaz, Migueles_ES
dc.creatorNavarro Cía, Migueles_ES
dc.date.accessioned2018-09-19T09:37:43Z
dc.date.available2018-09-19T09:37:43Z
dc.date.issued2015
dc.identifier.issn2045-2322 (Electronic)
dc.identifier.urihttps://hdl.handle.net/2454/30722
dc.description.abstractScientists and laymen alike have always been fascinated by the ability of lenses and mirrors to control light. Now, with the advent of metamaterials and their two-dimensional counterpart metasurfaces, such components can be miniaturized and designed with additional functionalities, holding promise for system integration. To demonstrate this potential, here ultrathin reflection metasurfaces (also called metamirrors) designed for focusing terahertz radiation into a single spot and four spaced spots are proposed and experimentally investigated at the frequency of 0.35 THz. Each metasurface is designed using a computer-generated spatial distribution of the reflection phase. The phase variation within 360 deg is achieved via a topological morphing of the metasurface pattern from metallic patches to U-shaped and split-ring resonator elements, whose spectral response is derived from full-wave electromagnetic simulations. The proposed approach demonstrates a high-performance solution for creating low-cost and lightweight beam-shaping and beam-focusing devices for the terahertz band.en
dc.description.sponsorshipThis work was supported by the Ministry of Education and Science of the Russian Federation under the State Assignment Contract #3002 (implementation of the Gerchberg-Saxton iterative algorithm and experimental testing), the Russian Science Foundation under the Project 14-12-01037 (full-wave electromagnetic simulations), and the Spanish Government under contracts Consolider “Engineering Metamaterials” CSD2008-00066, and TEC2011-28664-C01. M. Beruete acknowledges funding by the Spanish Government under the research contract program Ramón y Cajal RYC-2011-08221. M. N.-C. was supported by Imperial College London through a Junior Research Fellowship.en
dc.format.extent8 p.
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherSpringer Natureen
dc.relation.ispartofScientific Reports, 5: 7738en
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License.The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectTerahertz radiationen
dc.subjectPlanar holographic metasurfacesen
dc.titlePlanar holographic metasurfaces for terahertz focusingen
dc.typeinfo:eu-repo/semantics/articleen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónicaes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko eta Elektronikoa Sailaeu
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.identifier.doi10.1038/srep07738
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/6PN/TEC2011-28664en
dc.relation.publisherversionhttps://doi.org/10.1038/srep07738
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.type.versionVersión publicada / Argitaratu den bertsioaes


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This work is licensed under a Creative Commons Attribution-NonCommercial-
ShareAlike 4.0 International License.The images or other third party material in this
article are included in the article’s Creative Commons license, unless indicated
otherwise in the credit line; if the material is not included under the Creative
Commons license, users will need to obtain permission from the license holder
in order to reproduce the material.
Except where otherwise noted, this item's license is described as This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License.The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material.