Resonator-based reflective metasurface for low-frequency underwater acoustic waves

Zhong Chen, Fei Yan, Mehrdad Negahban, Zheng Li

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

A novel resonator-based metasurface is devised to control reflected underwater waves. Each metasurface unit is constructed with an aluminum plate attached to a lead mass. By tailoring the thickness of the plate, full 2πphase shift of the reflected wave can be achieved. Examples of redirection, focusing, and directional carpet cloaking are demonstrated as applications. The target frequency can be as low as 500 Hz and it can operate in a broadband range. Slight modifications allow the design to perform excellently from tens to thousands of hertz. This metasurface provides a new design paradigm when there is a need to manipulate low frequency underwater waves, such as in submarines for stealth operation or detection-signal manipulation to provide deceptive information.

Original languageEnglish (US)
Article number0006523
JournalJournal of Applied Physics
Volume128
Issue number5
DOIs
StatePublished - Aug 7 2020

ASJC Scopus subject areas

  • General Physics and Astronomy

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