Acoustic tweezers

L Meng, F Cai, F Li, W Zhou, L Niu… - Journal of Physics D …, 2019 - iopscience.iop.org
Acoustic tweezers are gaining increasing attention as a noncontact method that is capable
of handling microparticles and nanoparticles in a controllable manner. By designing the …

Trapping force of acoustical Bessel beams on a sphere and stable tractor beams

XD Fan, L Zhang - Physical Review Applied, 2019 - APS
We seek stable tractor beams that not only axially pull objects but also transversely trap the
object. Transverse force acting on a spherical particle centered on the axis of acoustic …

Equivalence between angular spectrum-based and multipole expansion-based formulas of the acoustic radiation force and torque

Z Gong, M Baudoin - The Journal of the Acoustical Society of America, 2021 - pubs.aip.org
Two main methods have been proposed to derive the acoustical radiation force and torque
applied by an arbitrary acoustic field on a particle: The first one relies on the plane wave …

Reversals of orbital angular momentum transfer and radiation torque

L Zhang - Physical Review Applied, 2018 - APS
Our examination of vortex fields of scalar waves illuminating an off-axis-located
axisymmetric object shows that the ratio of orbital angular momentum (OAM) transfer to …

Scheme of acoustic radiation force on general uniform structure

M Gong, Y Qiao, X Xu, J Liu, A He, X Liu - Physics of Fluids, 2023 - pubs.aip.org
Acoustic manipulation based on acoustic radiation force (ARF) is an important structure
manipulation method, which has a wide application prospect in particle manipulation. The …

Modulation of orbital-angular-momentum symmetry of nondiffractive acoustic vortex beams and realization using a metasurface

X Jiang, D Ta, W Wang - Physical Review Applied, 2020 - APS
Orbital angular momentum (OAM) carried by acoustic vortex attracts extensive research
interests due to the possible application such as acoustic tweezer and communications. The …

-matrix evaluation of three-dimensional acoustic radiation forces on nonspherical objects in Bessel beams with arbitrary order and location

Z Gong, PL Marston, W Li - Physical Review E, 2019 - APS
Acoustic radiation forces (ARFs) induced by a single Bessel beam with arbitrary order and
location on a nonspherical shape are studied using the T-matrix method (TMM) in three …

Nonlinear coupling between radial and axial vibrations during single-axis acoustic levitation in mid-air

N Sugita, T Oshino, T Shinshi - International Journal of Mechanical …, 2023 - Elsevier
In this paper, a nonlinear dynamic model of single-axis standing-wave acoustic levitation is
studied theoretically and experimentally to explore the effect of nonlinear coupling between …

Particle assembly with synchronized acoustic tweezers

Z Gong, M Baudoin - Physical Review Applied, 2019 - APS
The contactless selective manipulation of individual objects at the microscale is powerfully
enabled by acoustical tweezers based on acoustical vortices [M. Baudoin et al., Sci. Adv. 5 …

Acoustic radiation torque exerted on a subwavelength spheroidal particle by a traveling and standing plane wave

JP Leão-Neto, JH Lopes, GT Silva - … Journal of the Acoustical Society of …, 2020 - pubs.aip.org
The nonlinear interaction of ultrasonic waves with a nonspherical particle may give rise to
the acoustic radiation torque on the particle. This phenomenon is investigated here …