Concept of an asymmetric metasurface absorber

Xuchen Wang, Ana Díaz-Rubio, Viktar S. Asadchy, Sergei A. Tretyakov

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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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
PublisherEuropean Association on Antennas and Propagation (EurAAP)
Number of pages3
ISBN (Electronic)978-1-78561-816-1
ISBN (Print)978-1-78561-815-4
Publication statusPublished - 1 Jan 2018
MoE publication typeA4 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
Country/TerritoryUnited Kingdom
Internet address


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


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