Deformation of acoustically transparent fluid interfaces by the acoustic radiation pressureB. Issenmann1, A. Nicolas2, R. Wunenburger1, S. Manneville2 and J.-P. Delville1
1 Centre de Physique Moléculaire Optique et Hertzienne, UMR CNRS 5798, Université Bordeaux I 351 cours de la Libération, 33405 Talence Cedex, France, EU
2 Centre de Recherche Paul Pascal, UPR CNRS 8641 - Avenue Schweitzer, 33600 Pessac, France, EU
received 26 March 2008; accepted in final form 13 June 2008; published August 2008
published online 18 July 2008
We experimentally study the deformations of liquid-liquid interfaces induced by a high-intensity focused ultrasonic beam. We quantitatively verify that small-amplitude deformations of a transparent chloroform-water interface are well described by the theory of Langevin acoustic radiation pressure, in both static and dynamic regimes. The large-amplitude deformations depend on the direction of propagation of the beam and are qualitatively similar to those induced by electromagnetic radiation pressure.
43.25.+y - Nonlinear acoustics.
47.35.Pq - Capillary waves.
47.20.Ma - Interfacial instabilities (e.g., Rayleigh-Taylor).
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