Eur. Phys. J. D 44, 367-370 (2007)
https://doi.org/10.1140/epjd/e2007-00176-7

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 shuhua_79@hotmail.com

Received: 6 March 2007
Revised: 20 April 2007
Published online: 1 June 2007

Abstract

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.