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Lasers blow a bigger bubble

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  • Detlef Lohse

    (University of Marburg)

Abstract

In sonoluminescence, intense sound waves in water cause bubbles to form, which then collapse emitting a brief flash of light. We know that the collapse heats the trapped gas, but not why light is emitted. A technique that could help answer this question is laser-induced bubble collapse, in which much bigger bubbles are produced. Time-resolved measurements of the flash have been used to constrain emission mechanisms — for example, if it is ordinary thermal radiation, the central temperature in the bubble must be at least 70,000 K.

Suggested Citation

  • Detlef Lohse, 1998. "Lasers blow a bigger bubble," Nature, Nature, vol. 392(6671), pages 21-21, March.
    • Handle: RePEc:nat:nature:v:392:y:1998:i:6671:d:10.1038_32047
    DOI: 10.1038/32047
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