title: Three-dimensional modeling of stimulated Brillouin scattering in ignition-scale experiments.
abstract: The first three-dimensional simulations of a high power 0.351 mum laser beam propagating through a high temperature hohlraum plasma are reported. We show that 3D fluid-based modeling of stimulated Brillouin scattering, including linear kinetic corrections, reproduces quantitatively the experimental measurements, provided it is coupled to detailed hydrodynamics simulation and a realistic description of the laser beam from its millimeter-size envelope down to the micron scale speckles. These simulations accurately predict the strong reduction of stimulated Brillouin scattering measured when polarization smoothing is used.
authors.affiliation: L-399, Lawrence Livermore National Laboratory, University of California, P.O. Box 808, Livermore, California 94551, USA.
authors.forename: L
authors.initials: L
authors.lastname: Divol
authors.forename: R L
authors.initials: RL
authors.lastname: Berger
authors.forename: N B
authors.initials: NB
authors.lastname: Meezan
authors.forename: D H
authors.initials: DH
authors.lastname: Froula
authors.forename: S
authors.initials: S
authors.lastname: Dixit
authors.forename: L J
authors.initials: LJ
authors.lastname: Suter
authors.forename: S H
authors.initials: SH
authors.lastname: Glenzer