Acoustic metasurfaces derive their characteristics from the interaction between acoustic
waves and specifically designed materials. The field is driven by the desire to control …

Orbital angular momentum (OAM) has aroused a widespread interest in many fields,
especially in telecommunications due to its potential for unleashing new capacity in the …

Broadband sound sink/absorber via a structure with deep sub-wavelength thickness is of
great and continuing interest in physics and engineering communities. An intuitive technique …

Vortices in fluids and gases have piqued the human interest for centuries. Development of
classical-wave physics and quantum mechanics highlighted wave vortices characterized by …

Long-range acoustic communication is crucial to underwater applications such as collection
of scientific data from benthic stations, ocean geology, and remote control of off-shore …

In this Letter, we introduce a new paradigm for achieving robust asymmetric generation of
acoustic vortex field through dual-layer metasurfaces by controlling their intrinsic topologic …

Wave fields with orbital angular momentum (OAM) have been widely investigated in
metasurfaces. By engineering acoustic metasurfaces with phase gradient elements, phase …

Acoustics is a classical field of study that has witnessed tremendous developments over the
past 25 years. Driven by the novel acoustic effects underpinned by phononic crystals with …

Acoustic holographic rendering in complete analogy with optical holography are useful for
various applications, ranging from multi-focal lensing, multiplexed sensing and synthesizing …

Recently, metasurfaces have been proven to be effective and compact devices for the
design of arbitrary wavefronts. Metasurfaces are planar metamaterials with a subwavelength …