title: Fourier-space nonlinear Rayleigh-Taylor growth measurements of 3D laser-imprinted modulations in planar targets.
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. The measured growth of long-wavelength modes is consistent with enhanced, nonlinear, long-wavelength generation in ablatively driven targets.
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.
authors.forename: V A
authors.initials: VA
authors.lastname: Smalyuk
authors.forename: O
authors.initials: O
authors.lastname: Sadot
authors.forename: J A
authors.initials: JA
authors.lastname: Delettrez
authors.forename: D D
authors.initials: DD
authors.lastname: Meyerhofer
authors.forename: S P
authors.initials: SP
authors.lastname: Regan
authors.forename: T C
authors.initials: TC
authors.lastname: Sangster