Nonlinear multiple scattering of acoustic waves by a layer of bubbles

We present a theoretical and experimental study of the acoustic second-harmonic generation by a single layer of bubbles. This simple system allows us to investigate the subtle interplay between nonlinear effects and multiple scattering. A perturbative model is shown to give an excellent agreement wi...

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Bibliographic Details
Published inEurophysics letters Vol. 112; no. 2; pp. 24002 - p1-24002-p6
Main Authors Lombard, O., Barrière, C., Leroy, V.
Format Journal Article
LanguageEnglish
Published EDP Sciences, IOP Publishing and Società Italiana di Fisica 01.10.2015
European Physical Society / EDP Sciences / Società Italiana di Fisica / IOP Publishing
Subjects
43.25.+y
46.40.Cd
Acoustics
Bubbles
Harmonic generations
Nonlinearity
Optimization
Physics
Scattering
Screens
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Summary:We present a theoretical and experimental study of the acoustic second-harmonic generation by a single layer of bubbles. This simple system allows us to investigate the subtle interplay between nonlinear effects and multiple scattering. A perturbative model is shown to give an excellent agreement with the experimental measurements, and we demonstrate the existence of an optimal concentration of bubbles, for which the harmonic generation is maximum. The potential of bubble screens as efficient subwavelength acoustic nonlinear sources is discussed.
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ISSN:0295-5075
1286-4854
DOI:10.1209/0295-5075/112/24002