Unidirectional Transverse Scattering in Acoustic Dimers
Classical Physics
2026-04-23 v1 Applied Physics
Abstract
We study unidirectional transverse scattering in a two-dimensional acoustic dimer composed of two isotropic subwavelength scatterers. Using a coupled multipole model, we show that inter-particle coupling enables effective monopole-dipole interference and supports a transverse Kerker effect under plane wave excitation. In contrast to a single non-absorbing isotropic particle, where Kerker-type cancellation is only approached in the weak-scattering limit, the dimer can combine pronounced directionality with strong overall scattering. This regime is promising for compact acoustic beam steering and directional wave routing.
Keywords
Cite
@article{arxiv.2604.20690,
title = {Unidirectional Transverse Scattering in Acoustic Dimers},
author = {Mikhail Smagin and Iuliia Timankova and Pavel Pankin and Yong Li and Mihail Petrov},
journal= {arXiv preprint arXiv:2604.20690},
year = {2026}
}
Comments
6 pages, 4 figures