Acoustic metamaterial science is an emerging field at the frontier of modern acoustics. It
provides a prominent platform for acoustic wave control in subwavelength-sized …

Acoustic metamaterials (AMMs) are a type of artificial materials that make use of appropriate
structural designs and exhibit exotic properties not found in natural materials, such as …

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

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

Active acoustic metamaterials (AAMM) have been developed to overcome the limited
frequency bandwidth characteristics of passive acoustic metamaterials. The AAMM rely in …

Acoustic metamaterials have been widely investigated over the past few decades and have
realized acoustic parameters that are not achievable using conventional materials. After …

In the past two decades, the research on acoustic metamaterials has flourished, which is
also benefited from the development of additive manufacturing technology. The exotic …

Noise pollution has become a significant global problem in recent years. Unfortunately,
conventional acoustic materials cannot offer substantial improvements in noise reduction …

Extensive efforts are being exerted to develop various types of acoustic metamaterials to
effectively control the flow of acoustical energy through these materials. However, all these …

Acoustic metamaterials can manipulate and control sound waves in ways that are not
possible in conventional materials. Metamaterials with zero, or even negative, refractive …