The use of ultrasonic transducers with a central hollow is suggested for improved single-
beam acoustical tweezers applications. Within the framework of the Fresnel-Kirchhoff …

A rigorous method is developed to investigate the generation of a negative (attracting) force
acting in the opposite direction of wave propagation using a limited-diffracting single annular …

Partial-wave series expansions (PWSEs) satisfying the Helmholtz equation in spherical
coordinates are derived for circular spherically focused piston (ie, apodized by a uniform …

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 …

Hermite–Gaussian (HG l) acoustical–sheets are introduced and their beamforming
properties are examined. A general nonparaxial mathematical solution for the incident beam …

The tractor behavior of a zero-order Bessel acoustic beam acting on a fluid sphere, and
emanating from a finite circular aperture (as opposed to waves of infinite extent) is …

A rigorous theory is developed to predict the radiation force (RF) exerted on a sphere
immersed in an ideal fluid by a standing or quasistanding zero-order Bessel beam of …

In this paper, an expression for the acoustic radiation force on a sphere located on the axis
of a zero-order Mathieu beam propagating in an ideal fluid is obtained. The simulation …

The possibility to trap a sphere in the near-field of a single-beam piston transducer is
theoretically demonstrated. Conditions are found where a rigid, fluid, elastic, and …

Although the traditional focused acoustic-vortex (FAV) beams can be realized by a spherical
acoustic lens, the manipulation performance still suffers from the incomplete focusing at a …