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Proceedings Paper

Plasma diagnostics with a tabletop soft x-ray laser
Author(s): Jorge J. G. Rocca; Mario C. Marconi; Jorge Filevich Chamatropulos; Kelly Kanizay; Cesar H. Moreno; Juan L. A. Chilla; R. J. Berglund; Vyacheslav N. Shlyaptsev; Y. A. Unspenskii; Alexander V. Vinogradov; Yurii P. Pershin
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Paper Abstract

We discuss the first demonstrations of plasma diagnostics using a tabletop soft x-ray laser. A very compact capillary discharge pumped Ne-like Ar laser operating 46.9 nm was used to perform shadowgraphy and interferometry experiments in discharge-created discharge plasma waveguide. In a second set of experiments we took advantage of the good spatial coherence of the capillary discharge laser to perform soft x-ray interferometry measurements. In a first experiment the laser was used in combination with a simple wavefront division interferometer based on Lloyd's mirror to map the electron density distribution in the cathode region of a pinch discharge. In our most recent experiment we used an amplitude division interferometer, which utilizes diffraction grating as beam splitters, to probe a large scale laser-created plasma. Both interferometer schemes can be adapted to operate at the wavelength corresponding to any of the presently available saturated soft x-ray lasers.

Paper Details

Date Published: 11 January 2000
PDF: 12 pages
Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); doi: 10.1117/12.375118
Show Author Affiliations
Jorge J. G. Rocca, Colorado State Univ. (United States)
Mario C. Marconi, Colorado State Univ. (Argentina)
Jorge Filevich Chamatropulos, Colorado State Univ. (Argentina)
Kelly Kanizay, Colorado State Univ. (United States)
Cesar H. Moreno, Colorado State Univ. (United States)
Juan L. A. Chilla, Colorado State Univ. (United States)
R. J. Berglund, Colorado State Univ. (United States)
Vyacheslav N. Shlyaptsev, Lawrence Livermore National Lab. (United States)
Y. A. Unspenskii, P.N. Lebedev Physical Institute (Russia)
Alexander V. Vinogradov, P.N. Lebedev Physical Institute (Russia)
Yurii P. Pershin, Kharkov State Polytechnic Univ. (Ukraine)

Published in SPIE Proceedings Vol. 3886:
High-Power Lasers in Energy Engineering
Kunioki Mima; Gerald L. Kulcinski; William J. Hogan, Editor(s)

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