Direct Time Resolution of Sonoluminescence
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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Sonoluminescence is the synchronous emissions of pulses of light that are observed to originate from a gas bubble trapped at the pressure antinode of a resonant sound field in a liquid. The duration of the pulse has been directly measured by launching the light through an optical fiber into a streak camera equipped with a linear array CCD detector. Questions regarding dispersion in the fiber and the fundamental limitations imposed by it are addressed. The resulting direct measurements show that the duration of the emission is less than 8 picoseconds. Sonoluminescence.