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Collapse and Rebound of a Laser-Induced Cavitation Bubble

Akhatov, I. and Topolnikov, A. and Vakhitova, N. and Lindau, O. and Mettin, R. and Lauterborn, W. (2001) Collapse and Rebound of a Laser-Induced Cavitation Bubble. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA. (Unpublished)

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Single cavitation bubble luminescence (SCBL) induced by laser in contrast to single bubble sonoluminescence (SBSL) has no need in a sound field for a strong collapse and for light emission. The cavitation bubbles are produced by focused laser light and make the single strong collapse. As shown experimentally, the number of emitted photons from cavitation luminescence is much greater than it was observed in sonoluminescence due to the large bubble size during the final stage of collapse. To describe the process of laser--induced bubble collapse a mathematical model is proposed, which is based upon the spherically--symmetric motion. The basic results of the numerical solution are presented for the bubbles with initial radii of about 1~mm. According to the observed results the minimum bubble radius in collapse is about 15 microns, and the mass decreases up to 5 per cent of the initial value. The calculations show a good agreement with experimental measurements.

Item Type:Conference or Workshop Item (Lecture)
Subject Keywords:bubble dynamics, cavitation
Record Number:CAV2001:sessionA5.004
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Usage Policy:The papers of this symposium proceedings are protected by copyright, retained by the authors. Authors control translation and reproduction rights to these works. However, readers are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format. This permission is in addition to rights of reproduction granted under Section 107, 108, and other provisions of the U.S. Copyright Act.
ID Code:42
Deposited By: Imported from CAV2001
Deposited On:20 Apr 2001
Last Modified:03 Oct 2019 22:49

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