Shock Wave Emissions of a Sonoluminescing Bubble

Details Shock Wave Emissions of a Sonoluminescing Bubble Shock Wave Emissions of a Sonoluminescing Bubble

1998-11-24

arxiv.org/abs/chao-dyn/9811022v1

Phys. Rev. Lett. 81 (1998) 5434-5437

Physics

Condensed Matter

4 pages, 7 figures

Scientific paper

10.1103/PhysRevLett.81.5434

A single bubble in water is excited by a standing ultrasound wave. At high intensity the bubble starts to emit light. Together with the emitted light pulse, a shock wave is generated in the liquid at collapse time. The time-dependent velocity of the outward-travelling shock is measured with an imaging technique. The pressure in the shock and in the bubble is shown to have a lower limit of 5500 bars. Visualization of the shock and the bubble at different phases of the acoustic cycle reveals previously unobserved dynamics during stable and unstable sonoluminescence.

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