Fourier-space nonlinear rayleigh-taylor growth measurements of 3D laser-imprinted modulations in planar targets

V. A. Smalyuk, O. Sadot, J. A. Delettrez, D. D. Meyerhofer, S. P. Regan, T. C. Sangster

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Nonlinear growth of 3D broadband nonuniformities was measured near saturation levels using x-ray radiography in planar foils accelerated by laser light. The initial target modulations were seeded by laser nonuniformities and later amplified during acceleration by Rayleigh-Taylor instability. The nonlinear saturation velocities are measured for the first time and are found to be in excellent agreement with Haan predictions [Phys. Rev. A 39, 5812 (1989)PLRAAN1050-294710.1103/PhysRevA.39.5812]. The measured growth of long-wavelength modes is consistent with enhanced, nonlinear, long-wavelength generation in ablatively driven targets.

Original languageEnglish
Article number215001
JournalPhysical Review Letters
Volume95
Issue number21
DOIs
StatePublished - 18 Nov 2005
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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