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Absorbed energy vs laser intensity (a) and vs laser fluence (b) for , 40, 80, and 120 fs. Laser and target parameters: , , and .
Absorbed energy [(a) and (b)], conversion efficiency of laser energy into kinetic energy [(c) and (d)], and average and maximum kinetic energy [(e) and (f)] of vs laser fluence. Left column: variation in the laser pulse duration for ; right column: variation in the laser spot radius for . Target thickness is .
Absorbed energy and conversion efficiency of laser energy into ion kinetic energy (a) and maximum kinetic energy (b) of vs laser spot radius. Solid line: target thickness of , dashed line: , and dashed-dotted line: . Laser parameters: , , , and .
Energy distribution function of ions for various laser spot radii . Laser parameters as in Fig. 3; target thickness: .
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