Mechanical metamaterials are engineered materials with unconventional mechanical
behavior that originates from artificially programmed microstructures along with intrinsic …

Energy harvesting technologies have been explored by researchers for more than two
decades as an alternative to conventional power sources (eg batteries) for small-sized and …

Recent advances in the field of low-power electronic components production have spurred
research in energy harvesting. Ambient sound can be used as a source of energy, and the …

Metamaterials are artificially engineered structures that exhibit extraordinary properties
beyond the constituent materials, making them attractive for various applications in optics …

Metamaterials and phononic crystals (PCs) with artificially designed periodic microstructures
have attracted increasing research interests due to their unique properties that cannot be …

We theoretically report on an innovative and practical acoustic energy harvester based on a
defected acoustic metamaterial (AMM) with piezoelectric material. The idea is to create …

In this paper, a phononic crystal (PnC) Luneburg lens is designed for harvesting the
mechanical energy of Rayleigh surface waves. The square-latticed PnC is formed by drilling …

Metamaterial-based energy harvesting (MBEH) has recently received much attention due to
its capability of amplifying input mechanical wave transferred to a piezoelectric energy …

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

Acoustic black hole (ABH) effects can be obtained via proper structural tailoring to induce a
gradual reduction of the flexural wave velocity, thus creating high energy density structural …