1 February 1994 X-ray emission from an intense ultrashort pulse laser--aluminum target interaction
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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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert W. Clark, Robert W. Clark, Jack Davis, Jack Davis, John Giuliani, John Giuliani, } "X-ray emission from an intense ultrashort pulse laser--aluminum target interaction", Proc. SPIE 2012, Ultrashort Wavelength Lasers II, (1 February 1994); doi: 10.1117/12.167392; https://doi.org/10.1117/12.167392
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