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 …

Waste management represents a critical issue that industrialized countries must necessarily
deal with. Sustainable architecture involves the reuse of materials with the aim of …

The recent breakthrough in metamaterial-based optical computing devices (2014 Science
343 160) has inspired a quest for similar systems in acoustics, performing mathematical …

This paper proposes an acoustic beam splitter based on acoustic Luneburg lens. A two-
dimensional acoustic Luneburg lens with gradient refractive index is achieved to provide a …

Non-reciprocal phase shifters have been attracting a great deal of attention due to their
important applications in filtering, isolation, modulation, and mode locking. Here, we …

To gain a complete view on the unique spatial attenuation phenomenon arising from the
periodicity and the material viscoelasticity of the two-dimensional phononic crystals with …

A hybrid plasmonic-dielectric metasurface is proposed in order to manipulate beam
propagation in desired manners. The metasurface is composed of patterned hybrid …

Waveguide hybrid junctions, such as Magic-T and rat-race couplers, have been of great
interest in microwave technology not only for their applications in power monitoring, but also …

The active tuning of the bandgaps induced by the acoustic metamaterials has sparked
significant interest among researchers. It opens up possibilities for programmable …

The concept of birefringence, commonly treated as a property resulting from more than one
polarization, is associated with different refractive indices, depending on polarization. Here …