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

Orbital angular momentum (OAM) has aroused a widespread interest in many fields,
especially in telecommunications due to its potential for unleashing new capacity in the …

This paper explores the use of metasurface in designing an aerodynamic system for
potential vortex-induced vibration (VIV) suppression or energy harvesting. Four kinds of …

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

Vortices in fluids and gases have piqued the human interest for centuries. Development of
classical-wave physics and quantum mechanics highlighted wave vortices characterized by …

Recently, with advances in acoustic metamaterial science, the possibility of sound
attenuation using subwavelength structures, while maintaining permeability to air, has been …

In this Letter, we introduce a new paradigm for achieving robust asymmetric generation of
acoustic vortex field through dual-layer metasurfaces by controlling their intrinsic topologic …

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

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

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