Planarity and stability of shock driven directly by the ninth laser beam from “Shenguang-II" laser facility
Shanghai Institute of Laser Plasma, P.O. Box 800, Shanghai, 201800, P.R. China
Corresponding author: a email@example.com
Revised: 20 April 2007
Published online: 1 June 2007
Using the ninth laser beam (converted to 2ω) of “Shenguang-II” laser facility and the beam smoothing technology of lens-array [Appl. Opt. 25, 377 (1986); Phys. Plasmas. 9, 3201 (1995)], a shock wave with 700 μm (the root-mean-square of shock breakout time (RMS) RMS ≈ 6.32 ps) flat top was created. An Al-Al four-step target was designed to do research on shock wave stability in an Al target. And the shock stability experiment with the Al-Al four-step target indicated that the shock wave steadily propagated in the Al target of thickness of about 20–45 μm under the power density of ~ 1.0×1014 W/cm2.
PACS: 51.30.+i – Thermodynamic properties, equations of state / 91.60.Gf – High-pressure behavior / 52.50.Lp – Plasma production and heating by shock waves and compression
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007