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

Phononic crystals and acoustic metamaterials are periodic structures whose effective
properties can be tailored at will to achieve extreme control on wave propagation. Their …

The concept of a metasurface opens new exciting directions to engineer the refraction
properties in both optical and acoustic media. Metasurfaces are typically designed by …

We explore a phononic crystal Luneburg lens through design, fabrication, and analysis for
omnidirectional elastic wave focusing and enhanced energy harvesting both numerically …

Elastic metamaterials have been extensively investigated due to their significant effects on
controlling propagation of elastic waves. One of the most interesting properties is the …

We explore the enhancement of structure-borne elastic wave energy harvesting, both
numerically and experimentally, by exploiting a Gradient-Index Phononic Crystal Lens …

Through finite element analysis and a 3D printing assisted experimental study, we
demonstrate a design of mechanical metamaterials for simultaneous mechanical wave …

We experimentally demonstrate that a rainbow-based metamaterial, created by a graded
array of resonant rods attached to an elastic beam, operates as a mechanical delay-line by …

Guided waves, elastic waves propagating through bounded structures, play a pivotal role in
various applications, including ultrasonic non-destructive testing and structural health …

The ability to control elastic wave propagation at a deep subwavelength scale makes locally
resonant elastic metamaterials very relevant. A number of abilities have been demonstrated …