Transmissive terahertz metasurfaces with vanadium dioxide split-rings and grids for switchable asymmetric polarization manipulation

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buir.contributor.authorÖzbay, Ekmel
dc.citation.epage11en_US
dc.citation.issueNumber1en_US
dc.citation.spage1en_US
dc.citation.volumeNumber12en_US
dc.contributor.authorSerebryannikov, Andriy E.
dc.contributor.authorLakhtakia, Akhlesh
dc.contributor.authorVandenbosch, Guy A. E.
dc.contributor.authorÖzbay, Ekmel
dc.date.accessioned2023-02-28T13:54:42Z
dc.date.available2023-02-28T13:54:42Z
dc.date.issued2022-12
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractMetasurfaces containing arrays of thermally tunable metal-free (double-)split-ring meta-atoms and metal-free grids made of vanadium dioxide (VO2), a phase-change material can deliver switching between (1) polarization manipulation in transmission mode as well as related asymmetric transmission and (2) other functionalities in the terahertz regime, especially when operation in the transmission mode is needed to be conserved for both phases of VO2. As the meta-atom arrays function as arrays of metallic subwavelength resonators for the metallic phase of VO2, but as transmissive phase screens for the insulator phase of VO2, numerical simulations of double- and triple-array metasurfaces strongly indicate extreme scenarios of functionality switching also when the resulting structure comprises only VO2 meta-atoms and VO2 grids. More switching scenarios are achievable when only one meta-atom array or one grid is made of VO2 components. They are enabled by the efficient coupling of the geometrically identical resonator arrays/grids that are made of the materials that strongly differ in terms of conductivity, i.e. Cu and VO2 in the metallic phase. © 2022, The Author(s).en_US
dc.description.provenanceSubmitted by Cem Çağatay Akgün (cem.akgun@bilkent.edu.tr) on 2023-02-28T13:54:42Z No. of bitstreams: 1 Transmissive_terahertz_metasurfaces_with_vanadium_dioxide_split-rings_and_grids_for_switchable_asymmetric_polarization_manipulation.pdf: 2943032 bytes, checksum: 116445c656a4f99017ddf311f2e2630e (MD5)en
dc.description.provenanceMade available in DSpace on 2023-02-28T13:54:42Z (GMT). No. of bitstreams: 1 Transmissive_terahertz_metasurfaces_with_vanadium_dioxide_split-rings_and_grids_for_switchable_asymmetric_polarization_manipulation.pdf: 2943032 bytes, checksum: 116445c656a4f99017ddf311f2e2630e (MD5) Previous issue date: 2022-12en
dc.identifier.doi10.1038/s41598-022-07265-6en_US
dc.identifier.issn20452322
dc.identifier.urihttp://hdl.handle.net/11693/111957
dc.language.isoEnglishen_US
dc.publisherNature Researchen_US
dc.relation.isversionofhttps://dx.doi.org/10.1038/s41598-022-07265-6en_US
dc.source.titleScientific Reportsen_US
dc.titleTransmissive terahertz metasurfaces with vanadium dioxide split-rings and grids for switchable asymmetric polarization manipulationen_US
dc.typeArticleen_US

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