title: Direct visualization of laser-driven focusing shock waves.
abstract: Direct real-time visualization and measurement of laser-driven shock generation, propagation, and 2D focusing in a sample are demonstrated. A substantial increase of the pressure at the convergence of the cylindrical acoustic shock front is observed experimentally and simulated numerically. Single-shot acquisitions using a streak camera reveal that at the convergence of the shock wave in water the supersonic speed reaches Mach 6, corresponding to the multiple gigapascal pressure range ∼30 GPa.
authors.affiliation: Laboratoire de Physique de l'Etat Condensé, UMR CNRS 6087, Université du Maine, 72085 Le Mans, France. thomas.pezeril@univ-lemans.fr
authors.forename: T
authors.initials: T
authors.lastname: Pezeril
authors.forename: G
authors.initials: G
authors.lastname: Saini
authors.forename: D
authors.initials: D
authors.lastname: Veysset
authors.forename: S
authors.initials: S
authors.lastname: Kooi
authors.forename: P
authors.initials: P
authors.lastname: Fidkowski
authors.forename: R
authors.initials: R
authors.lastname: Radovitzky
authors.forename: Keith A
authors.initials: KA
authors.lastname: Nelson