The concept of metamaterials originates from the proposal of left-hand materials with
negative refractive index, followed by which, varieties of metamaterials with kinds of fantastic …

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

The recent advent of acoustic metamaterials has initiated a strong revival of interest on the
subject of sound absorption. The present review is based on the physics perspective as the …

Metamaterials are engineered materials which exhibit fascinating properties unreachable by
traditional materials. Here, we report on the design, fabrication, and experimental …

We propose a hybrid acoustic metamaterial as a super absorber for a relatively broadband
low-frequency sound based on a simple construction with deep-subwavelength thickness (5 …

Acoustic metamaterial represents the synergism between wave physics and designed
geometric structures, aimed at novel acoustic properties. For the important functionality of …

We introduce a multicoiled acoustic metasurface providing quasiperfect absorption
(reaching 99.99% in experiments) at an extremely lowfrequency of 50 Hz, simultaneously …

This paper presents a theoretical, numerical, and experimental investigation of a deep-
subwavelength absorber based on the concept of coiled-up space. By adjusting a partition …

This Letter reports an acoustic metasurface for low-frequency sound absorption with a
compact size in both vertical and lateral directions, which is constructed by a series of …

We present the mechanism for the asymmetric absorption of acoustic waves in a two-port
transparent waveguide system by shunting detuned Helmholtz resonators (HRs) pairs in …