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

Acoustic resonances in open systems, which are usually associated with resonant modes
characterized by complex eigenfrequencies, play a fundamental role in manipulating …

In the last two decades, seismic metamaterials have attracted significant attention of
researchers because of the characteristic of the bandgap which can be used to control …

In order to improve and broaden the sound absorption performance of porous materials with
low flow resistance, this study proposes the composite meta-porous structure embedded …

This study proposes an ultra-thin sound-absorbing metasurface for low-frequency sound
absorption, which is composed of resonators with an embedded spiral neck and a coiling-up …

This paper presents an acoustic metamaterial, coiled-up structure with porous lining (CSPL),
which is constructed by adding porous material lining to a coiled-up air channel for the …

Sound-absorbing materials (SAMs) have attracted significant interest for more than a century
owing to their rich physical properties and extensive potential in acoustic engineering. This …

Mechanical metamaterials, also known as architected materials, are rationally designed
composites, aiming at elastic behaviors and effective mechanical properties beyond ('meta') …

Acoustic metasurface has become one of the most promising platforms for manipulating
acoustic waves with the advantage of ultra-thin geometry. The conventional design method …

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