Metamaterials exhibit properties beyond those exhibited by conventional materials in
conventional scenarios. These have been investigated both theoretically and experimentally …

Flexible manipulation of elastic and acoustic waves through phononic meta-structured
materials (PMSMs) has attracted a lot of attention in the last three decades and shows a …

In this study, a composite meta-absorber with a flexible size is proposed, and a genetic
algorithm is used to optimize the geometric dimensions under normal incidence and free …

In this study, we show that robust and tunable acoustic asymmetric transmission can be
achieved through gradient-index metasurfaces by harnessing judiciously tailored losses. We …

Recent advances in gradient metasurfaces have shown that by locally controlling the
bianisotropic response of the cells one can ensure full control of refraction, that is, arbitrarily …

Wave fields with orbital angular momentum (OAM) have been widely investigated in
metasurfaces. By engineering acoustic metasurfaces with phase gradient elements, phase …

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

The metasurface concept has a significant potential due to its novel wavefront-shaping
functionalities that can be critically useful for ultrasonic and solid wave-based applications …

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 …

Acoustic fields are ideal for micromanipulation, being biocompatible and with force gradients
approaching the scale of single cells. They have accordingly found use in a variety of …