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論文

Laser-driven proton acceleration; Source optimization and radiographic applications

Borghesi, M.*; Bigongiari, A.*; Kar, S.*; Macchi, A.*; Romagnani, L.*; Audebert, P.*; Fuchs, A.*; Toncian, T.*; Willi, O.*; Bulanov, S. V.; et al.

Plasma Physics and Controlled Fusion, 50(12), p.124040_1 - 124040_10, 2008/12

 被引用回数:71 パーセンタイル:91.55(Physics, Fluids & Plasmas)

The paper corresponds to the plenary lecture presented at the EPS-2008 meeting. It contains a review of recent results obtained in the experiments and theory on the laser ion acceleration. The applications of the laser accelerated ions are also discussed.

論文

Observation of collisionless shocks in laser-plasma experiments

Romagnani, L.*; Bulanov, S. V.; Borghesi, M.*; Audebert, P.*; Gauthier, J. C.*; L$"o$wenbr$"u$ck, K.*; Mackinnon, A. J.*; Patel, P.*; Pretzler, G.*; Toncian, T.*; et al.

Physical Review Letters, 101(2), p.025004_1 - 025004_4, 2008/07

 被引用回数:152 パーセンタイル:95.69(Physics, Multidisciplinary)

The propagation in a rarefied plasma of collisionless shock-waves and ion-acoustic solitons, excited following the interaction of a long and intense laser pulse with solid targets, has been investigated via proton probing techniques. The shocks structures and related electric field distributions were reconstructed with high spatial and temporal resolution. The experimental results were interpreted within the framework of the nonlinear wave description based on the Korteweg-de Vries-Burgers (KdV-B) equation.

論文

Plasma jets driven by ultraintense-laser interaction with thin foils

Kar, S.*; Borghesi, M.*; Bulanov, S. V.; Key, M. H.*; Liseykina, T. V.*; Macchi, A.*; Mackinnon, A. J.*; Patel, P. K.*; Romagnani, L.*; Schiavi, A.*; et al.

Physical Review Letters, 100(22), p.225004_1 - 225004_4, 2008/06

 被引用回数:79 パーセンタイル:90.15(Physics, Multidisciplinary)

Experimental evidence of plasma jets ejected from the rear side of thin solid targets irradiated by ultra-intense ($$>$$ 10$$^{19}$$ W cm$$^{-2}$$) laser pulses is presented. The jets, detected by transverse inter-ferometric measurements with high spatial and temporal resolutions, show collimated expansion, lasting for several hundreds of picoseconds, and have substantially steep density gradients at their periphery. The predominant role played by radiation pressure of the laser in the jet formation process is highlighted analytically and by extensive two dimensional particle in cell simulations.

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