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Dynamic Behavior of Rippled Shock Waves and Subsequently Induced Areal-Density-Perturbation Growth in Laser-Irradiated Foils

1995; American Physical Society; Volume: 74; Issue: 18 Linguagem: Inglês

10.1103/physrevlett.74.3608

1092-0145

T. Endo, K. Shigemori, H. Azechi, A. Nishiguchi, K. Mima, Munetake SATO, M. Nakai, S. Nakaji, N. Miyanaga, Shin‐ichi Matsuoka, Ayumi Ando, K. A. Tanaka, S. Nakai,

Laser-Matter Interactions and Applications

Polystyrene foils with surface ripples of 60 or 100 \ensuremath{\mu}m wavelength were irradiated by 0.53 \ensuremath{\mu}m laser light at an intensity of $4\ifmmode\times\else\texttimes\fi{}{10}^{13}$ W/c${\mathrm{m}}^{2}$. Phase inversion of the rippled shock front was observed at a shock-propagation distance equal to the ripple wavelength. It has been found that the growth of the areal-density perturbation prior to shock breakout is due predominantly to the rippled-shock propagation.