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 …

Metalens, a two-dimensional planar system composed of strategically engineered
subwavelength structures, facilitates precise manipulation in the process of both light and …

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

Metalenses with high-efficiency focusing functionality and a water-flow-permeable structure
are desired in various acoustic applications, such as medical imaging and underwater …

Wavelength division multiplexing (WDM), the technology that utilizes different wavelengths
of carrier signal as independent information channels and helps to realize enhanced …

The recently proposed bianisotropic acoustic metagratings offer promising opportunities for
passive acoustic wavefront manipulation, which is of particular interest in flat acoustic lenses …

Superresolution metalenses that can realize a far-field needle focusing effect are highly
desired in various applications, such as medical diagnosing, ultrasonic detection, and …

Metalens with broadband and high-efficiency focusing functionality is desired in various
underwater acoustic applications such as sonar and oceanography. Here we design and …

Tunable ultrasonic focusing holds great significance in both medicine and engineering.
Recent advancements in metalenses have introduced approaches for tunable acoustic …

Metalenses have been widely studied and used because of their high design freedom and
ultrathin configurations. For various practical applications, such as geological exploration …