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Experimental Investigation of Acoustic Kerker Effect in Labyrinthine Resonators.

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Title: Experimental Investigation of Acoustic Kerker Effect in Labyrinthine Resonators.
Authors: Timankova, I. A.1 (AUTHOR), Smagin, M. V.1 (AUTHOR), Kuzmin, M. V.1 (AUTHOR), Lutovinov, A. I.1 (AUTHOR), Bogdanov, A. A.1,2 (AUTHOR), Li, Y.1,3 (AUTHOR), Petrov, M. I.1 (AUTHOR) m.petrov@metalab.ifmo.ru
Source: JETP Letters. Jan2026, Vol. 123 Issue 2, p133-139. 7p.
Subjects: Acoustic resonators, Sound wave scattering, Acoustic field, Acoustical materials, Acoustic resonance
Abstract: Controlling the directionality of acoustic scattering with single acoustic meta-atoms has a key importance for reaching spatial sound routing with acoustic metamaterials. In this paper, we present the experimental demonstration of the acoustic analogue of the Kerker effect realized in a two-dimensional coiled-space meta-atom. By engineering the interference between monopolar and dipolar resonances within a meta-atom with a high effective refractive index, we achieve directional scattering with suppressed backward or forward response at the first and second Kerker conditions, respectively. Experimental measurements of the scattered pressure field, in a parallel-plate waveguide environment, show good agreement with the full-wave simulations. Our results validate the feasibility of Kerker-inspired wave control in acoustic systems and open new opportunities for directional sound manipulation. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Controlling the directionality of acoustic scattering with single acoustic meta-atoms has a key importance for reaching spatial sound routing with acoustic metamaterials. In this paper, we present the experimental demonstration of the acoustic analogue of the Kerker effect realized in a two-dimensional coiled-space meta-atom. By engineering the interference between monopolar and dipolar resonances within a meta-atom with a high effective refractive index, we achieve directional scattering with suppressed backward or forward response at the first and second Kerker conditions, respectively. Experimental measurements of the scattered pressure field, in a parallel-plate waveguide environment, show good agreement with the full-wave simulations. Our results validate the feasibility of Kerker-inspired wave control in acoustic systems and open new opportunities for directional sound manipulation. [ABSTRACT FROM AUTHOR]
ISSN:00213640
DOI:10.1134/S0021364025609674