Observed transition from Richtmyer-Meshkov jet formation through feedout   oscillations to Rayleigh-Taylor instability in a laser target
  Experimental study of hydrodynamic perturbation evolution triggered by a laser-driven shock wave breakout at the free rippled rear surface of a plastic target is reported. At sub-megabar shock pressure, planar jets manifesting the development of the Richtmyer-Meshkov-type instability in a non-accelerated target are observed. As the shock pressure exceeds 1 Mbar, an oscillatory rippled expansion wave is observed, followed by the "feedout" of the rear-surface perturbations to the ablation front and the development of the Rayleigh-Taylor instability, which breaks up the accelerated target. 
Y. Aglitskiy, M. Karasik, A. L. Velikovich, V. Serlin, J. Weaver, T.   J. Kessler, S. P. Nikitin, A. J. Schmitt, S. P. Obens...
physics.plasm-ph