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Proceedings Paper

Memory effect on acoustic cavitation
Author(s): Oguz Yavas; Paul Leiderer; Hee K. Park; Constantine P. Grigoropoulos; Chie C. Poon; Andrew C. Tam
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Paper Abstract

The formation of bubbles at a liquid-solid interface due to acoustic cavitation depends particularly on the preconditions of the interface. Here, it is shown that following laser- induced bubble formation at the interface the acoustic cavitation efficiency is strongly enhanced. Optical reflectance measurements reveal that this observed enhancement of acoustic cavitation due to preceding laser-induced bubble formation, which could be termed as a memory effect, decays in a few hundred microseconds. By performing a double-pulse experiment using two excimer lasers the influence of process parameters, such as liquid temperature and salt concentration, on the temporal decay of the memory effect has been studied. An analysis of the experimental results by a diffusion model is presented.

Paper Details

Date Published: 1 March 1995
PDF: 4 pages
Proc. SPIE 2498, Laser Methods of Surface Treatment and Modification: ALT '94 International Conference, (1 March 1995); doi: 10.1117/12.203635
Show Author Affiliations
Oguz Yavas, Univ. Konstanz (Germany)
Paul Leiderer, Univ. Konstanz (Germany)
Hee K. Park, Univ. of California/Berkeley (United States)
Constantine P. Grigoropoulos, Univ. of California/Berkeley (United States)
Chie C. Poon, IBM Almaden Research Ctr. (United States)
Andrew C. Tam, IBM Almaden Research Ctr. (United States)


Published in SPIE Proceedings Vol. 2498:
Laser Methods of Surface Treatment and Modification: ALT '94 International Conference
Alexander M. Prokhorov; Vladimir I. Pustovoy, Editor(s)

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