The coupling of waves between the piezoelectric generators, detectors, and propagating
media is challenging due to mismatch in the acoustic properties. The mismatch leads to the …

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

The introduction of metasurfaces has renewed the Snell's law and opened up new degrees
of freedom to tailor the optical wavefront at will. Here, we theoretically demonstrate that the …

A hybrid acoustic metamaterial is proposed as a new class of sound absorber, which
exhibits superior broadband low-frequency sound absorption as well as excellent …

Similar to their optic counterparts, acoustic components are anticipated to flexibly tailor the
propagation of sound. However, the practical applications, eg for audible sound with large …

An acoustic metasurface carpet cloak based on membrane-capped cavities is proposed and
investigated numerically. This design has been chosen for allowing ultrathin geometries …

We show that by coiling up space through curled channels, a two-dimensional ultrathin
acoustic metamaterial can be constructed to support the extraordinary acoustic transmission …

We investigate numerically and experimentally highly efficient acoustic lenses based on the
principle of extraordinary acoustic transmission. We study circular, flat lenses composed of …

A 3D-printed gradient-index phononic crystal structure based on air inclusions in a polymer
is introduced to manipulate underwater acoustic waves. The proposed approach enables a …

Extraordinary optical transmission (EOT) is a term that refers to electromagnetic resonances
through sets of subwavelength apertures in either a flat or a corrugated metal film, providing …