Laser-Induced Bubbles in Cavitation Research
The strength of shock waves is measured with a fiberoptic hydrophone in dependence on bubble radius for ns laser pulses. The peak pressures at the bubble wall upon collapse range from 10 kbar to 25 kbar for maximum bubble radii between 0.5 mm and 3 mm. Cavitation bubble luminescence is determined in dependence on hydrostatic pressure. A maximum in light output is obtained at elevated hydrostatic pressure for constant laser energy input. The dynamics and luminescence properties of strongly elongated bubbles from fs laser pulses are investigated.
Keywordscavitation luminescence shock waves laser-produced bubbles
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- Dezhkunov, N., Iernetti, G., Francescutto, A., Reali, M., and Ciuti, P. (1997). Cavitation erosion and sonoluminescence at high hydrostatic pressures. Acustica, 83:19–24.Google Scholar