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Cavitation and spallation in liquid metal droplets produced by subpicosecond pulsed laser radiation

M. S. Krivokorytov, A. Yu. Vinokhodov, Yu. V. Sidelnikov, V. M. Krivtsun, V. O. Kompanets, A. A. Lash, K. N. Koshelev, and V. V. Medvedev
Phys. Rev. E 95, 031101(R) – Published 17 March 2017
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Abstract

The deformation and fragmentation of liquid metal microdroplets by intense subpicosecond Ti:sapphire laser pulses is experimentally studied with stroboscopic shadow photography. The experiments are performed at a peak intensity of 1014W/cm2 at the target's surface, which produces shock waves with pressures in the Mbar range. As a result of such a strong impact, the droplet is transformed into a complex-shaped hollow structure that undergoes asymmetrical expansion and eventually fragments. The hollow structure of the expanding target is explained by the effects of cavitation and spallation that follow the propagation of the laser-induced shock wave.

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  • Received 14 October 2016

DOI:https://doi.org/10.1103/PhysRevE.95.031101

©2017 American Physical Society

Physics Subject Headings (PhySH)

Fluid DynamicsInterdisciplinary PhysicsNonlinear DynamicsCondensed Matter, Materials & Applied PhysicsPlasma Physics

Authors & Affiliations

M. S. Krivokorytov1,2, A. Yu. Vinokhodov2, Yu. V. Sidelnikov1,2, V. M. Krivtsun1,3, V. O. Kompanets1, A. A. Lash3, K. N. Koshelev1,2, and V. V. Medvedev1,4

  • 1Institute for Spectroscopy, RAS, Fizicheskaya Street, 5, Troitsk, Moscow, Russia
  • 2EUV Labs, Sirenevy Boulevard, 1, Troitsk, Moscow, Russia
  • 3RnD-ISAN, Promyshlennaya Street, 1A, Troitsk, Moscow, Russia
  • 4ISTEQ B.V., High Tech Campus 84, Eindhoven, The Netherlands

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Issue

Vol. 95, Iss. 3 — March 2017

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