Dynamics of shock waves generated in liquids by high-energy KrF laser

Vladimir Zvorykin; Laurent Berthe; Michael Boustie; Alexey Levchenko; Nikolai Ustinovskii

doi:10.1117/12.787132

15 January 2008 Dynamics of shock waves generated in liquids by high-energy KrF laser

Vladimir Zvorykin, Laurent Berthe, Michael Boustie, Alexey Levchenko, Nikolai Ustinovskii

Proceedings Volume 6985, Fundamentals of Laser Assisted Micro- and Nanotechnologies; 69850R (2008) https://doi.org/10.1117/12.787132
Event: Fundamentals of Laser Assisted Micro- and Nanotechnologies, 2007, St. Petersburg, Russian Federation

Abstract

The paper is devoted to R&D of novel experimental technique - laser-driven shock tube (LST) for modeling of Rayleigh-Taylor (R-T) and Richtmyer-Meshkov (R-M) hydrodynamic instabilities development at the contact surface of two immiscible liquids under a shock wave (SW) passage. 100-J, 100-ns KrF laser facility GARPUN has been used to irradiate some opaque liquids. A homogenizing focusing system combined multi-element prism raster and a lens to provide non-uniformity less then few percents across a square 7*7-mm spot, laser intensities being varied in the range of q = 0.004 - 2 GW/cm². Surface plasma blow off produced a planar SW propagated into the liquid. SW amplitudes as high as 0.8 GPa weakly damping with increasing thickness were measured in dibutyl-phthalate (DBP), which strongly absorbed UV laser light. Test bench experiments were performed to produce standing acoustic waves as initial perturbations at the interface between two immiscible liquids.

Citation Download Citation

Vladimir Zvorykin, Laurent Berthe, Michael Boustie, Alexey Levchenko, and Nikolai Ustinovskii "Dynamics of shock waves generated in liquids by high-energy KrF laser", Proc. SPIE 6985, Fundamentals of Laser Assisted Micro- and Nanotechnologies, 69850R (15 January 2008); https://doi.org/10.1117/12.787132

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