The introduction of engineered resonance phenomena on surfaces has opened a new
frontier in surface science and technology. Pillared phononic crystals, metamaterials, and …

We experimentally realized a planar acoustic superlens by a simple structure consisting of
periodically arrayed rigid slabs. Based on the excitation of guided modes and the moderate …

We propose a solid phononic crystal lens capable of acoustic superfocusing beyond the
diffraction limit. The unit cell of the crystal is formed by four rigid cylinders in a hosting …

We report on the subwavelength imaging capabilities of a phononic crystal (PC) flat lens
consisting of a triangular array of steel cylinders in methanol, all surrounded by water. The …

We describe an analytical approach that allows calculating the trajectories of an elastic
beam within a two-dimensional phononic crystal-based gradient index medium. The …

Routing and guiding acoustic waves around sharp corners without backscattering losses is
of great interest in the acoustics community. Sonic crystals are primarily utilized to design …

In the present Letter, the multiple scattering theory (MST) for calculating the elastic wave
band structure of two-dimensional phononic crystals (PCs) is extended to include the …

We demonstrate that acoustic subwavelength imaging can be realized through the spoof
surface acoustic waves on the surface phononic crystal which is composed of borehole …

Focusing and subwavelength imaging of surface acoustic waves (SAWs) through a
phononic crystal flat lens are discussed in the presented work. Experimental and numerical …

In this work, the existence and propagation of acoustic Tamm states at the interface of air
and a face-centered cubic solid-fluid phononic crystal composed of spherical air voids …