Equivalent realizations of reciprocal metasurfaces: Role of tangential and normal polarization

M. Albooyeh, D.-H. Kwon, F. Capolino, and S. A. Tretyakov
Phys. Rev. B 95, 115435 – Published 27 March 2017

Abstract

We discuss possible topologies of physically different metasurfaces with equivalent macroscopic electromagnetic responses. We specifically demonstrate that the presence of normal components (with respect to the metasurface plane) of the polarization currents does not add any functionality in engineering the reflection and transmission characteristics which cannot occur in metasurfaces maintaining only tangential currents. Therefore, if a certain property is achievable using general volumetric inclusions, polarizable along all three directions, the same response can be achieved using some equivalent perfectly planar elements, polarizable only in the metasurface plane. Our results clarify what physical properties are necessary for realizing desired metasurface responses and promote flat microwave and optical designs, providing possibilities for dramatic complexity reduction of metasurfaces for rather general field transformations, including asymmetric reflection and transmission.

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  • Received 8 December 2016
  • Revised 2 March 2017

DOI:https://doi.org/10.1103/PhysRevB.95.115435

©2017 American Physical Society

Physics Subject Headings (PhySH)

General PhysicsCondensed Matter, Materials & Applied Physics

Authors & Affiliations

M. Albooyeh1, D.-H. Kwon2,3, F. Capolino1, and S. A. Tretyakov3

  • 1Department of Electrical Engineering and Computer Science, University of California, Irvine, California 92697, USA
  • 2Department of Electrical and Computer Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
  • 3Department of Electronics and Nanoengineering, Aalto University, Post Office Box 15500, FI-00076 Aalto, Finland

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Issue

Vol. 95, Iss. 11 — 15 March 2017

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