Concept of an asymmetric metasurface absorber

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In this talk we show how to break the angular symmetry of electromagnetic response of thin absorbers. Based on our recent results on multichannel metasurfaces, we propose a new concept of asymmetric absorbers in which the absorption coefficient for waves impinging from a given oblique angle is extraordinarily different from that for waves incident from the oppositely tilted direction. The proposed asymmetric structure realizes controllable reflectance (from 0 to 0.99) for waves incident from one direction, exhibiting total absorption when the sign of the incidence angle is reversed. We provide a theoretical analysis for the asymmetric absorber as well as a numerical verification.


Original languageEnglish
Title of host publication12th European Conference on Antennas and Propagation, EuCAP 2018
Publication statusPublished - 1 Jan 2018
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Antennas and Propagation - London, United Kingdom
Duration: 9 Apr 201813 Apr 2018
Conference number: 12


ConferenceEuropean Conference on Antennas and Propagation
Abbreviated titleEuCAP
CountryUnited Kingdom
Internet address

    Research areas

  • Absorbers, Asymmetric, Floquet harmonics, Multichannel metasurfaces, Surface impedances

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