Switching Acoustic Propagation via Underwater Metasurface
Name
PhysRevApplied.13.044019.pdf
Description
Published version
Size
3.81 MB
Format
Adobe PDF
Checksum (MD5)
6b8b056fa0abb0c231a605fad1389d1b
Author(s)
Cao, Peizheng
Zhang, Yu
Zhang, Sai
Ou, Wenzhan
Mosanenzadeh, Shahrzad Ghaffari
Fang, Nicholas X
Date Issued
2020
Journal
Physical Review Applied
Publisher
American Physical Society (APS)
Citation
Cao, Peizheng, Zhang, Yu, Zhang, Sai, Ou, Wenzhan, Mosanenzadeh, Shahrzad Ghaffari et al. 2020. "Switching Acoustic Propagation via Underwater Metasurface." Physical Review Applied, 13 (4).
Version
Final published version
Abstract
© 2020 American Physical Society. Switching on and off acoustic waves through metamaterials has potential in noise canceling, underwater detection, and communication. However, traditional acoustic designs are challenging in manipulating underwater acoustic waves when the device thickness is less than wavelength. Here we report an alternative design of an underwater metasurface-based acoustic switcher to achieve this goal. The switching mechanism is revealed by combing acoustic diffraction of grating with mode conversion of double-layer PMMA plates. The device is tuned to control wave transmission by changing grating angle. Furthermore, we experimentally fabricate the metasurface acoustic switcher. The broadband-switching performance is realized to control underwater target detection and to produce binary digital encoding for acoustic waves. The proposed metasurface acoustic switcher offers the advantages of broadband performance and thin structure, which promises the opportunity for designing next-generation broadband-switching devices in underwater acoustic detection and communication.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PHYSREVAPPLIED.13.044019
