Comparison of multibubble and single-bubble sonoluminescence spectra

Thomas J. Matula, Ronald A. Roy, Pierre D. Mourad, William B. McNamara, Kenneth S. Suslick

Research output: Contribution to journalReview articlepeer-review


Comparisons of the spectral characteristics of sonoluminescence from cavitation in bubble fields (MBSL) versus cavitation of single bubbles (SBSL) have been made for aqueous solutions under similar experimental conditions. In particular, alkali metal chloride solutions exhibit sonoluminescence emission from excited state Na or K atoms in MBSL, while SBSL exhibits no such emission. Since the metal ions are not volatile, participation of the initially liquid phase must occur in MBSL. Surface wave and microjet formation in cavitating bubble fields versus the high spherical symmetry of collapse of an isolated bubble may account for the observed differences.

Original languageEnglish (US)
Pages (from-to)2602-2605
Number of pages4
JournalPhysical review letters
Issue number13
StatePublished - 1995

ASJC Scopus subject areas

  • General Physics and Astronomy


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