Metasurface has great capabilities in tailoring the electromagnetic (EM) waves in a
controllable way owing to the carefully designed and arranged subwavelength meta-atoms …

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

Acoustic holography has emerged as a revolutionary technique to reconstruct the desired
wavefronts of sound fields. Traditional acoustic holography typically relies on arrays of …

Metasurface-based acoustic hologram projectors fabricated with fixed microstructures can
only generate the predesigned images at a single or few discrete frequencies. Here, a …

As an analogue of the binary acoustic metasurfaces (BAMs), the sparse binary elastic
metasurfaces (SBEMs) which consist of two different coding units with sparse arrangement …

Acoustic tunable focusing lens has important applications in acoustic fast imaging and three-
dimensional displays. Previously developed metasurface lenses suffer from narrow …

Passive metasurfaces are known for their fixed and usually single-wave manipulation
functionality, which limits their potential applications for diverse scenarios. To expand the …

We report pseudospin-dependent hybrid topological acoustic metamaterials constructed
from tunable acoustic metamaterials and honeycomb-latticed sonic crystals. Using a …

Acoustic coding metasurfaces (ACMs) with limited kinds of meta-atoms have attracted much
attention due to flexible wavefront manipulations of acoustic waves. However, the previously …

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 …