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Proceedings Paper

X-ray emission from an intense ultrashort pulse laser--aluminum target interaction
Author(s): Robert W. Clark; Jack Davis; John Giuliani
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Paper Abstract

The interaction of an intense subpicosecond laser pulse with a planar aluminum target is investigated to determine the characteristics of the evolving plasma. In particular, attention is focused on the emitted x-ray pulse, its spectra including K(alpha ) emission, and intensity. The interaction is simulated with a non-LTE radiation hydrodynamics model self-consistently coupled to a Helmholtz wave equation describing the absorption of S- and P- polarized incident laser radiation. A fraction of the absorbed laser energy is redistributed and expended in fast electrons, which are transported and deposit their energy producing local heating, inner-shell atomic vacancies and K(alpha ) radiation. The feasibility of creating conditions conducive to the formation of atomic population inversions leading to gain in selected K- and L-shell transitions is explored.

Paper Details

Date Published: 1 February 1994
PDF: 12 pages
Proc. SPIE 2012, Ultrashort Wavelength Lasers II, (1 February 1994); doi: 10.1117/12.167392
Show Author Affiliations
Robert W. Clark, Naval Research Lab. (United States)
Jack Davis, Naval Research Lab. (United States)
John Giuliani, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 2012:
Ultrashort Wavelength Lasers II
Szymon Suckewer, Editor(s)

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