title: Feed-out of rear surface perturbation due to rarefaction wave in laser-irradiated targets
abstract: We report experimental results on hydrodynamic perturbation transfer from the rear to the front of laser-irradiated targets. Flat polystyrene foils with rear-surface perturbations were irradiated by partially coherent light. We observed phase inversion of the rear surface after the shock breakout at the rear surface. Perturbations on the laser-irradiated surface arose due to the rippled rarefaction wave. Experimental results were well reproduced by a simple model with unperturbed hydrodynamic quantities calculated from the one-dimensional simulation.
authors.affiliation: Institute of Laser Engineering, Osaka University 2-6 Yamada-Oka, Suita, Osaka, 565-0871 Japan.
authors.initials: K
authors.lastname: Shigemori
authors.initials: M
authors.lastname: Nakai
authors.initials: H
authors.lastname: Azechi
authors.initials: K
authors.lastname: Nishihara
authors.initials: R
authors.lastname: Ishizaki
authors.initials: T
authors.lastname: Nagaya
authors.initials: H
authors.lastname: Nagatomo
authors.initials: K
authors.lastname: Mima