Volume 83, Number 3, August 2008
Article Number 34002
Number of page(s) 6
Section Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics
Published online 18 July 2008
EPL, 83 (2008) 34002
DOI: 10.1209/0295-5075/83/34002

Deformation of acoustically transparent fluid interfaces by the acoustic radiation pressure

B. 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).

© EPLA 2008