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

In this letter, it is suggested to attach acoustic black holes (ABHs) on a base beam with
gradient parameters for wave attenuation in ultrawide bands. Three types of metabeams …

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 …

We amalgamate two fundamental designs from distinct areas of wave control in physics, and
place them in the setting of elasticity. Graded elastic metasurfaces, so-called metawedges …

This work proposes a graded metamaterial-based energy harvester integrating the
piezoelectric energy harvesting function targeting low-frequency ambient vibrations (< 100 …

In this paper, we suggest a metabeam having periodically distributed integrated acoustic
black holes (IABHs). Compared to conventional embedded ABHs, the thickness of the base …

We experimentally achieve wave-mode conversion and rainbow trap** in an elastic
waveguide loaded with an array of resonators. Rainbow trap** is a phenomenon that …

Unlike well-studied locally resonant (LR) metamaterials with a periodic array of identical
resonators,'graded'LR metamaterials consist of an array of resonators with a spatially …

In this work, we numerically and experimentally investigate topological rainbow trap** and
energy amplification of acoustic waves in a gradient phononic crystal (PC) structure. Thanks …

The elastic analogs of topological insulators (TIs) have attracted substantial research
interest owing to their potential prospects in wave manipulation and low-loss transmission …