Picosecond 14.7 nm interferometry of high intensity laser-produced plasmas
Date
2005
Authors
Marconi, Mario C., author
Ng, Andrew, author
Hunter, James R., author
Shlyaptsev, Vyacheslav N., author
Nilsen, Joseph, author
Keenan, Roisin, author
Rocca, Jorge J., author
Moon, Stephen J., author
Smith, Raymond F., author
Filevich, Jorge, author
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Abstract
We have developed a compact, 14.7 nm, sub-5 ps X-ray laser source at Lawrence Livermore National Laboratory (LLNL) together with a Mach-Zehnder type diffraction grating interferometer built at Colorado State University for probing dense, high intensity laser-produced plasmas. The short wavelength and pulse length of the probe reduces refraction, absorption effects within the plasma and minimizes plasma motion blurring. This unique diagnostic capability gives precise two-dimensional (2D) density profile snapshots and is generating new data for rapidly evolving laser-heated plasmas. A review of the results from dense, mm-scale line focus plasma experiments will be described with detailed comparisons to hydrodynamic simulations.
Description
Also part of the Proceedings of 28th European Conference on Laser Interaction with Matter (ECLIM), Rome, Italy, 5-10 September, 2004.
Rights Access
Subject
x-ray lasers
x-ray optics
laser-produced plasmas
interferometer