Simulation studies of vapor bubble generation by short-pulse lasers
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abstract
Formation of vapor bubbles is characteristic of many applications of short-pulse lasers in medicine. An understanding of the dynamics of vapor bubble generation is useful for developing and optimizing laser-based medical therapies. To this end, experiments in vapor bubble generation with laser light deposited in an aqueous dye solution near a fiber-optic tip have been performed. Numerical hydrodynamic simulations have been developed to understand and extrapolate results from these experiments. Comparison of two-dimensional simulations with the experiment shows excellent agreement in tracking the bubble evolution. Another regime of vapor bubble generation is short-pulse laser interactions with melanosomes. Strong shock generation and vapor bubble generation are common physical features of this interaction. A novel effect of discrete absorption by melanin granules within a melanosome is studied as a possible role in previously reported high Mach number shocks [Lin and Kelly, SPIE 2391, 294 (1995)].
name of conference
Laser-Tissue Interaction, Tissue Optics, and Laser Welding III
Amendt, P. A., London, R. A., Strauss, M., Glinsky, M. E., Maitland, D. J., Celliers, P. M., ... Kelly, M. W.
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2
complete list of authors
Amendt, Peter A||London, Richard A||Strauss, Moshe||Glinsky, Michael E||Maitland, Duncan J||Celliers, Peter M||Visuri, Steven R||Bailey, David S||Young, David A||Ho, Darwin||Lin, Charles P||Kelly, Michael W
editor list (cited editors)
Delacretaz, G. P., Godlewski, G., Pini, R., Steiner, R. W., & Svaasand, L. O.
