Theory and Design of Multifunctional Space-Time Metasurfaces

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorWang, Xuchenen_US
dc.contributor.authorDíaz-Rubio, Anaen_US
dc.contributor.authorLi, Huananen_US
dc.contributor.authorTretyakov, Sergei A.en_US
dc.contributor.authorAlù, Andreaen_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.groupauthorSergei Tretiakov Groupen
dc.contributor.organizationCity University of New Yorken_US
dc.date.accessioned2020-06-01T06:56:28Z
dc.date.available2020-06-01T06:56:28Z
dc.date.issued2020-04-15en_US
dc.description| openaire: EC/H2020/736876/EU//VISORSURF
dc.description.abstractIntegrating multiple functionalities into a single metasurface is becoming of great interest for future intelligent communication systems. While such devices have been extensively explored for reciprocal functionalities, in this work, we integrate a wide variety of nonreciprocal applications into a single platform. The proposed structure is based on spatiotemporally modulated impedance sheets supported by a grounded dielectric substrate. We show that, by engineering the excitation of evanescent modes, nonreciprocal interactions with impinging waves can be configured at will. We demonstrate a plethora of nonreciprocal components, such as wave isolators, phase shifters, and circulators, on the same metasurface. This platform allows switching between different functionalities by modifying only the pumping signals (harmonic or nonharmonic), without changing the main body of the metasurface structure. This solution opens the door for future real-time reconfigurable and environment-adaptive nonreciprocal wave controllers.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationWang, X, Díaz-Rubio, A, Li, H, Tretyakov, S A & Alù, A 2020, ' Theory and Design of Multifunctional Space-Time Metasurfaces ', Physical Review Applied, vol. 13, no. 4, 044040 . https://doi.org/10.1103/PhysRevApplied.13.044040en
dc.identifier.doi10.1103/PhysRevApplied.13.044040en_US
dc.identifier.issn2331-7019
dc.identifier.otherPURE UUID: f265cb4f-9f3f-406c-99c2-2c055d8b2388en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/f265cb4f-9f3f-406c-99c2-2c055d8b2388en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85084176107&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/42908145/Wang_Theory_and_design_PRA.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/44571
dc.identifier.urnURN:NBN:fi:aalto-202006013544
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/736876/EU//VISORSURFen_US
dc.relation.ispartofseriesPhysical Review Applieden
dc.relation.ispartofseriesVolume 13, issue 4en
dc.rightsopenAccessen
dc.titleTheory and Design of Multifunctional Space-Time Metasurfacesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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