Volume 83, Number 3, August 2008
|Number of page(s)||6|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||18 July 2008|
Deformation of acoustically transparent fluid interfaces by the acoustic radiation pressure
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
Corresponding author: email@example.com
Accepted: 13 June 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.
PACS: 43.25.+y – Nonlinear acoustics / 47.35.Pq – Capillary waves / 47.20.Ma – Interfacial instabilities (e.g., Rayleigh-Taylor)
© EPLA, 2008
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