The study of phononic materials and structures is an emerging discipline that lies at the
crossroads of vibration and acoustics engineering and condensed matter physics. Broadly …

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 …

Phononic crystals (PnCs) are novel synthetic periodic materials for controlling and
manipulating the propagation of elastic (or acoustic) waves. The periodic nature of PnCs …

Molding the wavefront of acoustic waves into the desired shape is of paramount significance
in acoustics, which however are usually constrained by the acoustical response of naturally …

Acoustic lenses find applications in various areas ranging from ultrasound imaging to
nondestructive testing. A compact-size and high-efficient planar acoustic lens is crucial to …

The metascreen-based acoustic passive phased array provides a new degree of freedom for
manipulating acoustic waves due to their fascinating properties, such as a fully shifting …

Attenuating low-frequency sound remains a challenge, despite many advances in this field.
Recently-developed acoustic metamaterials are characterized by unusual wave …

Based on the Huygens-Fresnel principle, a metasurface structure is designed to generate a
sound vortex beam in airborne environment. The metasurface is constructed by a thin planar …

A microstructure design of anisotropic resonant inclusions is investigated for the elastic
metamaterial plate with the aid of the numerically based effective medium model …

This letter reports designs of adaptive metasurfaces capable of modulating incoming wave
fronts of elastic waves through electromechanical-tuning of their cells. The proposed elastic …