Acoustic Luneburg lens (ALL) is a spherically/circularly symmetric gradient refractive index
lens, whose index varies smoothly from the outer surface to the centre. The variation of the …

Based on the form‐invariance of Maxwell's equations under coordinate transformations,
mathematically smooth deformation of space can be physically equivalent to …

Acoustic black hole (ABH) structures have been widely utilized for vibration suppression
owing to its tailored indentations according to a power-law profile. Compared with single …

Aiming at achieving lower and broader bandgaps (BGs) and stronger collimation effect, this
research proposes a novel perforated metamaterial plate with acoustic black holes (ABHs) …

Acoustic black holes (ABHs) achieved by thinning structural thickness following a power-law
profile have shown fantastic applications in vibration and noise suppression, energy …

Abstract Three-dimensional (3D) phononic topological insulators (TIs) featuring two-
dimensional (2D) surface states and one-dimensional (1D) hinge states have opened up a …

Topological insulator (TI) that possesses topologically protected characteristic of guiding the
wave against disorders and structural perturbations without backscattering has attracted …

While embedding acoustic black holes (ABHs) in plates has proved to be a lightweight and
useful solution for noise and vibration reduction, their potential for wave manipulation is only …

An elastic metasurface is an artificial structure composed of subwavelength structures that
can manipulate elastic waves with an arbitrary phase gradient transformation. However …

Abstract Acoustic Black Hole (ABH) is a wedged taper in thin-walled structures that allows
for a smooth and progressive retarding of bending wave speed. However, the application of …