Abstract
Ion acceleration by petawatt laser radiation in underdense and overdense plasmas is studied with 2D3V-PIC (Particle in Cell) numerical simulations. These simulations show that the laser pulse drills a channel through the plasma slab, and electrons and ions expand in vacuum. Fast electrons escape first from the electron-ion cloud. Later, ions gain a high energy on account of the Coulomb explosion of the cloud and the inductive electric field which appears due to fast change of the magnetic field generated by the laser pulse. Similarly, when a superintense laser pulse interacts with a thin slab of overdense plasma, its ponderomotive pressure blows all the electrons away from a finite-diameter spot on the slab. Then, due to the Coulomb explosion, ions gain an energy as high as 1 GeV.
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References
G. A. Mourou, C. P. J. Barty, and D. Perry, Phys. Today 51(1), 22 (January 1998).
A. V. Gurevich, L. V. Pariiskaya, and L. P. Pitaevskii, Zh. Éksp. Teor. Fiz. 49, 647 (1965) [Sov. Phys. JETP 22, 449 (1966)]; A. V. Gurevich and A. P. Meshcherkin, Zh. Éksp. Teor. Fiz. 80, 1810 (1981) [Sov. Phys. JETP 53, 937 (1981)].
G. S. Sarkisov, V. Yu. Bychenkov, V. T. Tikhonchuk et al., JETP Lett. 66, 828 (1997).
M. Lezius, S. Dobosz, D. Normand, and M. Schmidt, Phys. Rev. Lett. 80, 261 (1998).
F. N. Beg et al., Phys. Plasmas 4, 447 (1997); P. A. Norreys et al., Plasma Phys. Controlled Fusion 40, 175 (1998).
V. Yu. Bychenkov, V. T. Tikhonchuk, and S. V. Tolokonnikov, JETP (1999), to be published.
V. A. Vshivkov, N. M. Naumova, F. Pegoraro, and S. V. Bulanov, Phys. Plasmas 5, 2727 (1998).
G. A. Askar’yan, S. V. Bulanov, and I. V. Sokolov, Plasma Phys. Rep. 25, 800 (1999).
G. A. Askar’yan, S. V. Bulanov, F. Pegoraro, and A. M. Pukhov, JETP Lett. 60, 251 (1994).
S. C. Wilks, W. L. Kruer, M. Tabak, and A. B. Langdon, Phys. Rev. Lett. 69, 1383 (1992).
H. Ruhl, Y. Sentoku, K. Mima et al., Phys. Rev. Lett. 82, 743 (1999); Y. Sentoku, H. Ruhl, K. Mima et al., submitted to Phys. Plasmas.
Y. Sentoku, K. Mima, T. Taguchi et al., Phys. Plasmas 5, 4366 (1998).
F. Califano, F. Pegoraro, S. V. Bulanov, and A. Mangeney, Phys. Rev. E 57, 7048 (1998); F. Califano, R. Prandi, F. Pegoraro, and S. V. Bulanov, Phys. Rev. E 58, 7837 (1998).
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Pis’ma Zh. Éksp. Teor. Fiz. 70, No. 2, 80–86 (25 July 1999)
Published in English in the original Russian journal. Edited by Steve Torstveit.