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Nonlinear stage in the development of hydrodynamic instability in laser targets

  • E. G. Gamaly (a1), A. P. Favorsky (a2), A. O. Fedyanin (a2), I. G. Lebo (a1), E. E. Myshetskaya (a2), V. B. Rozanov (a1) and V. F. Tishkin (a2)...

Abstract

The development of hydrodynamic instability in laser targets is studied by means of the 2D numerical code “ATLANT.” At the linear stage, perturbations grow as At the nonlinear stage, the growth rate of Rayleigh-Taylor instability is reduced and new harmonics are generated. The effect of the nonuniformity of laser irradiation has been investigated for long- and shortwave perturbations. The growth rate of short-wave perturbations may be effectively decreased by means of symmetrical prepulses.

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Nonlinear stage in the development of hydrodynamic instability in laser targets

  • E. G. Gamaly (a1), A. P. Favorsky (a2), A. O. Fedyanin (a2), I. G. Lebo (a1), E. E. Myshetskaya (a2), V. B. Rozanov (a1) and V. F. Tishkin (a2)...

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