Acoustic metamaterials (AMs), which are materials composed of subwavelength periodic
artificial structures with specific designs, have drawn significant research attention. This is …

Acoustic/elastic metasurfaces as a kind of two-dimensional metamaterials are of
subwavelength thickness and show remarkable ability of acoustic/elastic wave …

The effective operation of certain electronic, medical, industrial, and testing equipment relies
on high-quality focusing and imaging capability, which also plays a vital role in the field of …

We demonstrate multifunctional acoustic metasurfaces that can simultaneously realize the
same functionality or multiple different functionalities at multiple tunable frequencies. The …

The advent of acoustic metasurfaces (AMs), which are the two-dimensional equivalents of
metamaterials, has opened up new possibilities in wave manipulation using acoustically thin …

Metamaterials, man-made composites that are scaled smaller than the wavelength, have
demonstrated a huge potential for application in acoustics, allowing the production of sub …

Coding metasurfaces are a kind of metasurface that can combine artificial structures with
digital codes “0” and “1.” By digitally programming the arrangements of structural units, they …

The ultrahigh-frequency (UHF) ultrasonic transducers are active in various fields, including
nondestructive evaluation in the semiconductor industry, microscopic biological organization …

Acoustic metasurfaces are attractive due to the feasibility of unprecedented modulation for
reflected or refracted waves. However, most proposed acoustic metasurfaces are planar …

In this work, we propose a kind of sub-wavelength coding acoustic metasurface composed
of Helmholtz resonators (HRs) to achieve wavelength-selected beam shaping for transmitted …