Journal
MATERIALS
Volume 16, Issue 21, Pages -Publisher
MDPI
DOI: 10.3390/ma16217044
Keywords
acoustic wave; acoustic metasurfaces; reflection; transmission; absorptive; tunability; wavefront manipulation
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This paper reviews the recent research progress of acoustic metasurfaces, including design mechanisms, applications, and future research interests.
Acoustic metasurfaces, as two-dimensional acoustic metamaterials, are a current research topic for their sub-wavelength thickness and excellent acoustic wave manipulation. They hold significant promise in noise reduction and isolation, cloaking, camouflage, acoustic imaging, and focusing. Resonant structural units are utilized to construct acoustic metasurfaces with the unique advantage of controlling large wavelengths within a small size. In this paper, the recent research progresses of the resonant metasurfaces are reviewed, covering the design mechanisms and advances of structural units, the classification and application of the resonant metasurfaces, and the tunable metasurfaces. Finally, research interest in this field is predicted in future.
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