Acoustic metasurfaces derive their characteristics from the interaction between acoustic
waves and specifically designed materials. The field is driven by the desire to control …

Acoustic metamaterials, structured to produce anomalous reflection and refraction indices
that are not found in conventional materials, are gaining prominence in engineering …

Many advanced physical properties can be realized by using well-designed acoustic
metamaterial (AM) structures, which have significant application value in engineering. In …

A severe limitation of current acoustic metasurfaces remains in their modest tunability to
meet multifrequency requirements and alterable functionalities on demand. Here, a …

Acoustic metasurfaces offer unique capabilities to steer and direct acoustic fields, though
these are generally composed of complex 3D structures, complicating their fabrication and …

We theoretically and experimentally investigate a helical acoustic metasurface capable of
providing a modulated sound-reflected wavefront and a continuously tunable broadband …

Previously reported acoustic metasurfaces consisting of fixed channels are untunable to
meet broadband requirements and alterable functionalities. To overcome this limitation, we …

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

Complex polarizations of elastic waves allow mode conversions between two solids, making
wave mode separation extremely difficult even for a narrow frequency range with resonant …

We present the theoretical design, numerical simulation, and experimental demonstration of
a single-parameter-based underwater ultrasound cloaking of arbitrary objects based on …