Open AccessOptodynamic characterization of the shock waves after laser-induced breakdown in water
Author(s) -
Rok Petkovšek,
Janez Možina,
Griša Močnik
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.004107
Subject(s) - shock wave , optics , attenuation , interferometry , laser , amplitude , shock (circulatory) , wave propagation , physics , deflection (physics) , materials science , mechanics , medicine
Plasma and a cavitation bubble develop at the site of laser-induced breakdown in water. Their formation and the propagation of the shock wave were monitored by a beam-deflection probe and an arm-compensated interferometer. The interferometer part of the setup was used to determine the relative position of the laser-induced breakdown. The time-of-flight data from the breakdown site to the probe beam yielded the velocity, and from the velocity the shock-wave pressure amplitudes were calculated. Two regions were found where the pressure decays with different exponents, pointing to a strong attenuation mechanism in the initial phase of the shock-wave propagation.