A. Samokhin, A. P. Bazhulin, N. N. Il'ichev, A. Ivochkin, P. Pivovarov, I. Stuchebrukhov
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Explosive Boiling of Transparent Liquids on Absorbing Targets Heated by Short Laser Pulses
Explosive boiling induced by sub-nanosecond laser pulses is theoretically analyzed in the case of transparent liquids on metal targets. In this case the variation of boiling start times due to inhomogeneous distribution of laser intensity through the irradiation spot can be reduced up to laser pulse duration and registered explosive boiling pressure signals become less distorted. The results are compared with experimental investigations of photoacoustic (PA) signals induced in metal target under transparent liquid layer irradiated by laser pulses of about 100 ps duration and wavelength 532 nm.
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