Lasers blow a bigger bubble

Detlef Lohse ()
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Detlef Lohse: University of Marburg

Nature, 1998, vol. 392, issue 6671, 21-21

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.

Date: 1998
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DOI: 10.1038/32047

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