In solid state physics, a bandgap (BG) refers to a range of energies where no electronic
states can exist. This concept was extended to classical waves, spawning the entire fields of …

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

Manipulating the polarizations of electroagnetic waves by flexible and diverse means is
desirable for myriad microwave systems. More recently, metasurfaces have emerged as …

In this study, we investigate high-performance piezoelectric energy harvesting at multiband
frequencies. Previous harvesting platforms were limited to a high-frequency range and …

The invisible cloak has attracted great attention due to its significant influences on science
and engineering. Active elastic wave metamaterials provide superior controllable …

Unlike their electromagnetic and acoustic counterparts, elastic waves involve different wave
modes. The interplay and the coupling among them increase the complexity of the problem …

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

This article presents the selective guided wave mode transmission enabled by elastic
metamaterials. The metamaterial unit cells are comprised of Locally Resonant (LR) cylinders …

This investigation proposes a novel elastic metasurface tailored to convert a longitudinal
wave into a transverse wave and vice versa at an arbitrary refraction angle with full (100%) …

This article reports a new mechanism involving a non-perforated resonant elastic
metamaterial to achieve the complete conversion of Lamb waves (A 0 and S 0) into the …