The advancement in electromagnetic metamaterials, which commenced three decades ago,
experienced a rapid transformation into acoustic and elastic systems in the forms of …

The concept of non-Hermitian physics has inspired numerous intriguing phenomena in
classical wave systems. By introducing judicious arrangements of gain and loss media, non …

A novel metamaterial beam with embedded quasi-zero-stiffness (QZS) resonator is
proposed to realize wave attenuation in very low-frequency band gaps. The configuration of …

Acoustic metasurfaces are at the frontier of acoustic functional material research owing to
their advanced capabilities of wave manipulation at an acoustically vanishing size. Despite …

Acoustic metasurface has become one of the most promising platforms for manipulating
acoustic waves with the advantage of ultra-thin geometry. The conventional design method …

Guiding classical waves has inspired a wealth of nontrivial physics and significant
applications. To date, a robust and compact way to guide energy flux traveling along an …

The elastic metasurface with compact design and easy fabrication has provided some
insight into applications of solid wave-based field owing to its novel wavefront-shaping …

Second-order elastic topological insulators (SETIs) with topologically protected corner states
offer new routes for the realization of the robust manipulation of elastic waves in lower …

Classical meta-absorber designs usually have a tradeoff between bandwidth, efficiency, and
thickness. Here, we introduce the concept of a nonlocal acoustic metasurface absorber by …

The elastic metasurface with phase discontinuities has received much attention for realizing
diverse wave steering applications. To date, the elastic metasurfaces capable of realizing …