Initially proposed to achieve strong noise isolation levels beyond the mass-density law,
acoustic metamaterials (AMMs) have now overturned the conventional views in all aspects …

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 with negative constitutive parameters (modulus and/or mass density)
have shown great potential in diverse applications ranging from sonic cloaking, abnormal …

According to the mass law, a dense and thick soundproofing material is generally used to
block low-frequency sounds. However, lightweight thin soundproofing materials in the form …

Effective transmission of sound from water to air is crucial for the enhancement of the
detection sensitivity of underwater sound. However, only 0.1% of the acoustic energy is …

Owing to a steep rise in urban population, there has been a continuous growth in
construction of buildings, public or private transport like cars, motorbikes, trains, and planes …

Wave propagation through a structured medium has attracted the attention of researchers for
centuries due to its relevance to problems in condensed matter physics, chemistry, optics …

Low-frequency and broadband noise reductions have always been a major industrial
concern, as they pose a significant challenge. Although acoustic metamaterials are …

In recent years, advances in timber engineering, combined with an associated evolution in
building codes, have led to a significant expansion of multi-storey timber construction …

In the past two decades, acoustic metamaterials have garnered much attention owing to
their unique functional characteristics, which are difficult to find in naturally available …