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Asymmetric Elastic Metasurface for Wave Manipulation Between Different Media

Sang Vin Jang, Sung Won Lee, and Joo Hwan Oh*

  • School of Mechanical Engineering, Ulsan National Institute of Science and Technology, UNIST-gil 50, Eonyang-eup, Ulju-gun, Ulsan, 44919, South Korea

  • *joohwan.oh@unist.ac.kr
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Phys. Rev. Applied 19, 024036 – Published 13 February, 2023

DOI: https://doi.org/10.1103/PhysRevApplied.19.024036

Abstract

This paper mainly studies the problem of metasurfaces between different mediums. Despite recent advances on metasurfaces, there has been a critical limitation that wave manipulation between two different mediums is theoretically impossible with general approaches since full transmission and desired phase shift cannot be achieved simultaneously. In order to get over this theoretical issue, we propose an asymmetric metasurface that can manipulate waves between two different mediums. By introducing the asymmetry, achieving both full transmission and desired phase shift simultaneously is theoretically enabled. From theoretical approaches, an actual continuum metasurface is designed and applied to various wave manipulations between two different mediums. We expect that the proposed metasurface can be applied to various applications in the area of ultrasonics and vibrations.

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Outline

Information

Phys. Rev. Applied 19, 024036– Published 13 February, 2023
  • Received 11 October 2022
  • Revised 8 December 2022
  • Accepted 23 December 2022
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