Journal
OPTICS AND LASER TECHNOLOGY
Volume 39, Issue 5, Pages 968-972Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2006.06.005
Keywords
cavitation bubble; prolongation factor; optical beam deflection
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The oscillation of a laser-generated single cavitation bubble near a solid boundary is investigated by a fiber-optic diagnostic technique based on optical beam deflection (OBD). The maximum bubble radii and collapse time for each oscillation cycle are determined from a sequence of bubble oscillations. Furthermore, by combining the revised Rayleigh theory, the prolongation factor K at different dimensionless parameter gamma(gamma = L/R-max where R-max is the maximum bubble radius and L is the distance of a cavity inception point from a boundary) is obtained. In addition, the prolongation factor of the collapse time versus laser energy is also derived, which are valuable in the fields of hydraulic cavitation, laser lithotripsy and laser ophthalmology. (c) 2006 Elsevier Ltd. All rights reserved.
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