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

Acoustic levitation uses acoustic radiation forces to counteract gravity and suspend objects
in mid-air. Although acoustic levitation was first demonstrated almost a century ago, for a …

We demonstrate the trapping of elastic particles by the large gradient force of a single
acoustical beam in three dimensions. Acoustical tweezers can push, pull and accurately …

Acoustical tweezers based on focalized acoustical vortices hold the promise of precise
contactless manipulation of millimeter down to submicrometer particles, microorganisms …

Usually a light beam pushes a particle when the photons act upon it. We investigate the
optical forces by nonparaxial gradientless beams and find that the forces can drag suitable …

An electronically controlled acoustic tweezer was used to demonstrate two acoustic
manipulation phenomena: superposition of Bessel functions to allow independent …

We analyze spin and orbital angular momenta in monochromatic acoustic wave fields in a
homogeneous medium. Despite being purely longitudinal (curl-free), inhomogeneous …

A theoretical approach is developed to calculate the radiation force of an arbitrary acoustic
beam on an elastic sphere in a liquid or gas medium. First, the incident beam is described …

This work aims to model the acoustic radiation forces acting on an elastic sphere placed in
an inviscid fluid. An expression of the axial and transverse forces exerted on the sphere is …

We present the analytical design and experimental realization of a scheme based on multi-
arm coiling slits to generate the stable acoustic vortices in a broadband. The proposed …