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Microimplosions: Cavitation Collapse and Shock Wave Emission on a Nanosecond Time Scale

Phys. Rev. Lett. 84, 1328 – Published 7 February 2000
R. Pecha and B. Gompf

Abstract

A streak camera with high spatial and temporal resolution was used for imaging the dynamics of the violent collapse in single-bubble sonoluminescence. The high pressure in the last phase of the bubble collapse leads to the emission of a shock wave, which is launched with a shock velocity of almost 4000 m/s. The shock amplitude decays much faster than 1/r. From the strongly nonlinear propagation the pressure in the vicinity of the bubble can be calculated to be in the range of 40–60 kbar.

DOI: http://dx.doi.org/10.1103/PhysRevLett.84.1328

  • Received 3 August 1999
  • Published in the issue dated 7 February 2000

© 2000 The American Physical Society

Physics Focus

Hot Bubbles

Published 3 February 2000

Authors & Affiliations

R. Pecha and B. Gompf

  • 1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany

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