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Proceedings Paper

Soft x-ray laser interferometer used for dense plasma diagnostics
Author(s): Mario C. Marconi; Jorge Filevich Chamatropulos; Jorge J. G. Rocca; Ela Jankowska; E. Hammerstein; Kelly Kanizay; Juan L. A. Chilla
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Paper Abstract

Laser interferometry allows the recording of the electron density in a great variety of plasmas. However, the absorption and refraction imposes a limitation to the maximum density, plasma size and plasma gradient that can be measured with this technique. The development of compact soft x-ray laser sources gives the opportunity to extend the limits of plasma interferometry, probing plasmas with high densities and steep gradients. We present results of plasma interferometry using an amplitude division interferometer and a table top soft x-ray laser. The interferometer is a modified Mach-Zehnder configuration with diffraction gratings used as beam splitters. The soft x-ray laser is a 46.9 nm capillary discharge table-top laser. The set up was used to probe a laser-created plasma with a temporal resolution of approximately 1 ns and densities up to 6 1020 cm-3.

Paper Details

Date Published: 14 August 2001
PDF: 4 pages
Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); doi: 10.1117/12.437142
Show Author Affiliations
Mario C. Marconi, Univ. de Buenos Aires (Argentina)
Jorge Filevich Chamatropulos, Univ. de Buenos Aires and Colorado State Univ. (Argentina)
Jorge J. G. Rocca, Colorado State Univ. (United States)
Ela Jankowska, Colorado State Univ. (United States)
E. Hammerstein, Colorado State Univ. (United States)
Kelly Kanizay, Colorado State Univ. (United States)
Juan L. A. Chilla, Coherent, Inc. (United States)

Published in SPIE Proceedings Vol. 4419:
4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications
Vera L. Brudny; Silvia A. Ledesma; Mario C. Marconi, Editor(s)

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