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Updated: Dec 22, 2025

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
Published on: August 21, 2018
Acoustic radiation force due to incident plane-progressive waves on coated spheres
José P Leão-Neto1, José H Lopes2, Glauber T Silva3
1Campus Arapiraca/Unidade de Ensino Penedo, Universidade Federal de Alagoas, Penedo, Alagoas 57200-000, Brazil.
Abstract:
The acoustic radiation force exerted by a traveling plane wave on a coated sphere was theoretically investigated. After carefully re-calculating the scattering coefficients of a model presented by Mitri [Eur. Phys. J. B 43, 379-386 (2005)], a missing term is found that is related to absorption in the particle shell. By amending the theory, it is shown that nonphysical consequences predicted earlier disappear. The homogeneous sphere results in the long-wavelength limit are also correctly recovered.
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