Acoustic forces near elastic substrate
arXiv:2411.15507 · doi:10.1063/5.0233891
Abstract
In this work, we study the acoustic forces acting on particles due to sound scattering at the interface with an elastic substrate. Utilizing the Green's function formalism, we predict that excitation of leaking Rayleigh wave results in strong modification of the acoustic pressure force acting on a monopole scatterer and changes the equilibrium position of particles above the substrate surface. We also showed that the presence of a substrate changes the configuration of the acoustical binding of two particles due to multiple rescattering of acoustic wave from the interface. The reported results propose the method of acoustic manipulation via surface waves excitation and demonstrate the effect from elastic media in acoustical trapping of microobjects.
References in corpus (8)
- Observation of a single-beam gradient force acoustical trap for elastic particles: acoustical tweezers
- Acoustic interaction forces between small particles in an ideal fluid
- Acoustic Radiation Force and Torque on Small Particles as Measures of the Canonical Momentum and Spin Densities
- Transverse spin and surface waves in acoustic metamaterials
- Optical binding via surface plasmon polariton interference
- Acoustic interaction forces and torques acting on suspended spheres in an ideal fluid
- Acoustically mediated long-range interaction among multiple spherical particles exposed to a plane standing wave
- Acoustic interaction force between two particles immersed in a viscoelastic fluid