The acoustic environment of a sonoluminescing bubble

Holzfuss, Joachim; Ru¨ggeberg, Matthias; Holt, R. Glynn
July 2000
AIP Conference Proceedings;2000, Vol. 524 Issue 1, p421
Academic Journal
A bubble is levitated in water in a cylindrical resonator which is driven by ultrasound. It has been shown that in a certain region of parameter space the bubble is emitting light pulses (sonoluminescence), One of the properties observed is the enormous spatial stability leaving the bubble &ldq;pinned&rdq; in space allowing it to emit light with a timing of picosecond accuracy. We argue that the observed stability is due to interactions of the bubble with the resonator. A shock wave emitted at collapse time together with a self generated complex sound field, which is experimentally mapped with high resolution, is responsible for the observed effects.


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