Laser-induced hydrodynamic instability of fluid interfaces
CASNER, Alexis
Centre de physique moléculaire optique et hertzienne [CPMOH]
DAM Île-de-France [DAM/DIF]
Centre de physique moléculaire optique et hertzienne [CPMOH]
DAM Île-de-France [DAM/DIF]
CASNER, Alexis
Centre de physique moléculaire optique et hertzienne [CPMOH]
DAM Île-de-France [DAM/DIF]
< Réduire
Centre de physique moléculaire optique et hertzienne [CPMOH]
DAM Île-de-France [DAM/DIF]
Langue
en
Article de revue
Ce document a été publié dans
Physical Review Letters. 2003, vol. 90, p. 144503
American Physical Society
Résumé en anglais
We report on a new class of electromagnetically-driven fluid interface instability. Using the optical radiation pressure of a cw laser to bend a very soft near-critical liquid-liquid interface, we show that it becomes ...Lire la suite >
We report on a new class of electromagnetically-driven fluid interface instability. Using the optical radiation pressure of a cw laser to bend a very soft near-critical liquid-liquid interface, we show that it becomes unstable for sufficiently large beam power P, leading to the formation of a stationary beam-centered liquid micro-jet. We explore the behavior of the instability onset by tuning the interface softness with temperature and varying the size of the exciting beam. The instability mechanism is experimentally demonstrated. It simply relies on total reflection of light at the deformed interface whose condition provides the universal scaling relation for the onset Ps of the instability.< Réduire
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