[Table of Contents]

Plasma and Fusion Research

Volume 2, 032 (2007)

Rapid Communications

Effects of Laser Wavelength on Interaction of Ultrashort Intense Laser with Finite-Scale Length Dense Plasmas
Susumu KATO, Eiichi TAKAHASHI, Yuji MATSUMOTO and Isao OKUDA
National Institute of Advanced Industrial Science and Technology (AIST)
(Received 25 May 2007 / Accepted 13 June 2007 / Published 11 July 2007)

Abstract

The energetic electrons and ions generated by the interaction of an intense, ultrashort laser pulse with a finite scale-length dense plasma were investigated for various laser wavelengths using particle-in-cell simulation. The hot-electron temperature for the density scale-length L = 2.5 μm is not governed by the Iλ2-scaling laws, where I is the laser intensity and λ is the laser wavelength. The maximum energy of the energetic ions is not only proportional to the hot-electron temperature but depends on the electron density.

Keywords

ultraintense laser, energetic electron production, energetic ion production, laser-plasma interactions

DOI: 10.1585/pfr.2.032

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References

  • [1] K. Nemoto et al., Appl. Phys. Lett. 78, 595 (2001).
  • [2] S. Fritzler et al., Appl. Phys. Lett. 83, 3039 (2003).
  • [3] U. Teubner et al., Phys. Rev. E 54, 4167 (1996).
  • [4] M. Borghesi et al., Phys. Rev. E 60, 7374 (1999).
  • [5] S.C. Wilks, Phys. Fluids B 5, 2603 (1993); S.C. Wilks et al., Phys. Rev. Lett. 69, 1383 (1992).
  • [6] S. Kato et al., J. Plasma Fusion Res. 78, 717 (2002).
  • [7] S. Kato et al., Proc. of the 12th International Congress on Plasma Physics, 25-29 October 2004, Nice (France), http://hal.ccsd.cnrs.fr/ccsd-00001970
  • [8] E. Lefebvre and G. Bonnaud, Phys. Rev. E 55, 1011 (1997).
  • [9] C.K. Birdsall and A.B. Langdon, Plasma Physics via Computer Simulation (McGraw-Hill, NewYork, 1985), Chap. 6.
  • [10] S.P. Hatchett et al., Phys. Plasmas 7, 2076 (2000).

This paper may be cited as follows:

Susumu KATO, Eiichi TAKAHASHI, Yuji MATSUMOTO and Isao OKUDA, Plasma Fusion Res. 2, 032 (2007).