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 metamaterials are materials with artificially designed structures, which have
characteristics that surpass the behavior of natural materials, such as negative refraction …

Topological insulators, a hallmark of condensed matter physics, have recently reached the
classical realm of acoustic waves. A remarkable property of time-reversal invariant …

Manipulation of acoustic wave fronts by thin and planar devices, known as metasurfaces,
has been extensively studied, in view of many important applications. Reflective and …

An acoustic metasurface carpet cloak based on membrane-capped cavities is proposed and
investigated numerically. This design has been chosen for allowing ultrathin geometries …

Controlling audible sound requires inherently broadband and subwavelength acoustic
solutions, which are to date, crucially missing. This includes current noise absorption …

Acoustic metasurfaces, exhibiting superior performance with subwavelength thickness, are
ideal alternatives for functionalities such as wavefront modulation and acoustic energy …

Dispersive acoustic metamaterials (AMMs) with graded refractive index is promising in
acoustic sensing enhancement by providing acoustic rainbow trapping (ART) effect …

Metasurfaces are ultrathin planar arrays of carefully tailored subwavelength particles that
enable agile and flexible manipulation of the impinging waves. Originally introduced in …

Wavelength division multiplexing technology, adopted to increase the information density,
plays a significant role in optical communication. However, in acoustics, a similar function …