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 …

Acoustic metamaterials (AMs), which are materials composed of subwavelength periodic
artificial structures with specific designs, have drawn significant research attention. This is …

The effective operation of certain electronic, medical, industrial, and testing equipment relies
on high-quality focusing and imaging capability, which also plays a vital role in the field of …

Acoustic tweezers powerfully enable the contactless collective or selective manipulation of
microscopic objects. Trapping is achieved without pretagging, with forces several orders of …

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

The manipulation of acoustic waves plays an important role in a wide range of applications.
Currently, acoustic wave manipulation typically relies on either acoustic metasurfaces or …

We report zero-th and high-order acoustic Bessel beams with broad depth-of-field generated
using acoustic holograms. While the transverse field distribution of Bessel beams generated …

Holograms can shape wavefronts to produce arbitrary acoustic images. In this work, we
experimentally demonstrate how acoustic holograms can produce controlled thermal …

Acoustic vortices provide a single-beam approach to manipulate objects with sizes from
nanometers to millimeters, gaining increasing interest in recent years. The helical beam …

We present acoustic modeling, measurements, and interpretation of the angular momentum
carried in an ultrasonic vortex beam that is obliquely reflected off a flat water-air interface …