Resonance absorption in high-intensity contrast, picosecond laser–plasma interactions[ATOTHER]@f|[/ATOTHER]

Meyerhofer, D. D.; Chen, H.; Delettrez, J. A.; Soom, B.; Uchida, S.; Yaakobi, B.
July 1993
Physics of Fluids B: Plasma Physics;Jul93, Vol. 5 Issue 7, p2584
Academic Journal
The interaction of high-intensity contrast, picosecond, 1-µm laser pulses with solid metal targets is studied with K[sub α] emission from multilayer targets, fast ion blowoff, and other diagnostics. It is found that the characteristics of the interaction are determined by the intensity of the p-polarized component of the incoming laser field, rather than the total intensity. Consistent with resonance absorption, 20%-30% of the laser energy is deposited into suprathermal electrons that have temperatures from 2-10 keV.


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