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

Acoustic/elastic metasurfaces as a kind of two-dimensional metamaterials are of
subwavelength thickness and show remarkable ability of acoustic/elastic wave …

In the last two decades, seismic metamaterials have attracted significant attention of
researchers because of the characteristic of the bandgap which can be used to control …

The design of low-frequency broadband acoustic absorbers with thin thicknesses is a
longstanding and challenging problem. This work proposes an acoustic metasurface …

Elastic metasurfaces, being the subject of much attention and discussion, are first designed
by phase modulation and now are also considered as a kind of structures with …

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-sha** …

Metasurfaces are planar metamaterials with a flat surface and a subwavelength thickness
that are able to shape arbitrary wave fronts such as focusing or imaging. There is a broad …

The partial or complete confinement of waves in an open system is omnipresent in nature
and in wave-based materials and technology. Here, we theoretically analyze and …

Metasurfaces have attracted much attention due to their much more compact configurations
and their abilities to modulate wavefronts of propagating waves by abruptly shifting their …

Acoustic metasurfaces (AMs) used for reflected sound wavefront manipulation are generally
designed based on the generalized Snell's law (GSL) at a single frequency, suffering from …