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Optical observation of shock waves and cavitation bubbles in high intensity laser-induced shock processes



Optical observation of shock waves and cavitation bubbles in high intensity laser-induced shock processes



Applied Optics 48(19): 3671-3680



We report an experimental study of the temporal and spatial dynamics of shock waves, cavitation bubbles, and sound waves generated in water during laser shock processing by single Nd:YAG laser pulses of nanosecond duration. A fast ICCD camera (2 ns gate time) was employed to record false schlieren photographs, schlieren photographs, and Mach-Zehnder interferograms of the zone surrounding the laser spot site on the target, an aluminum alloy sample. We recorded hemispherical shock fronts, cylindrical shock fronts, plane shock fronts, cavitation bubbles, and phase disturbance tracks.

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Accession: 054765453

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PMID: 19571922

DOI: 10.1364/AO.48.003671


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