Perfect control of reflection and refraction using spatially dispersive metasurfaces

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Asadchy, V. S. Albooyeh, M. Tcvetkova, S. N. Díaz-Rubio, A. Ra'Di, Y. Tretyakov, S. A. 2018-08-01T13:27:50Z 2018-08-01T13:27:50Z 2016-08-19
dc.identifier.citation Asadchy , V S , Albooyeh , M , Tcvetkova , S N , Díaz-Rubio , A , Ra'Di , Y & Tretyakov , S A 2016 , ' Perfect control of reflection and refraction using spatially dispersive metasurfaces ' PHYSICAL REVIEW B , vol 94 , no. 7 , 075142 , pp. 1-14 . DOI: 10.1103/PhysRevB.94.075142 en
dc.identifier.issn 1098-0121
dc.identifier.issn 1550-235X
dc.identifier.other PURE UUID: 5cdc23d8-b29b-456c-9727-6fa699865655
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description.abstract Nonuniform metasurfaces (electrically thin composite layers) can be used for shaping refracted and reflected electromagnetic waves. However, known design approaches based on the generalized refraction and reflection laws do not allow realization of perfectly performing devices: there are always some parasitic reflections into undesired directions. In this paper we introduce and discuss a general approach to the synthesis of metasurfaces for full control of transmitted and reflected plane waves and show that perfect performance can be realized. The method is based on the use of an equivalent impedance matrix model which connects the tangential field components at the two sides on the metasurface. With this approach we are able to understand what physical properties of the metasurface are needed in order to perfectly realize the desired response. Furthermore, we determine the required polarizabilities of the metasurface unit cells and discuss suitable cell structures. It appears that only spatially dispersive metasurfaces allow realization of perfect refraction and reflection of incident plane waves into arbitrary directions. In particular, ideal refraction is possible only if the metasurface is bianisotropic (weak spatial dispersion), and ideal reflection without polarization transformation requires spatial dispersion with a specific, strongly nonlocal response to the fields. en
dc.format.extent 1-14
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PHYSICAL REVIEW B en
dc.relation.ispartofseries Volume 94, issue 7 en
dc.rights openAccess en
dc.subject.other Condensed Matter Physics en
dc.subject.other Electronic, Optical and Magnetic Materials en
dc.subject.other 114 Physical sciences en
dc.title Perfect control of reflection and refraction using spatially dispersive metasurfaces en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Radio Science and Engineering
dc.contributor.department University of Michigan, Ann Arbor
dc.subject.keyword Condensed Matter Physics
dc.subject.keyword Electronic, Optical and Magnetic Materials
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201808014182
dc.identifier.doi 10.1103/PhysRevB.94.075142
dc.type.version publishedVersion

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