Picosecond 14.7 nm interferometry of high intensity laser-produced plasmas

TitlePicosecond 14.7 nm interferometry of high intensity laser-produced plasmas
Publication TypeJournal Article
Year of Publication2005
AuthorsDunn, J., J. Filevich, R. F. Smith, S. J. Moon, J. J. Rocca, R. Keenan, J. Nilsen, V. N. Shlyaptsev, J. R. Hunter, A. Ng, and M. C. Marconi
JournalLaser and Particle Beams

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.


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