Lateral electron transport in high-intensity laser-irradiated foils diagnosed by ion emission

P. McKenna, D. C. Carroll, R. J. Clarke, R. G. Evans, K. W. D. Ledingham, F. Lindau, O. Lundh, T. McCanny, D. Neely, A. P. L. Robinson, L. Robson, P. T. Simpson, C. -G. Wahlstrom, M. Zepf

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An experimental investigation of lateral electron transport in thin metallic foil targets irradiated by ultraintense (>= 10(19) W/cm(2)) laser pulses is reported. Two-dimensional spatially resolved ion emission measurements are used to quantify electric-field generation resulting from electron transport. The measurement of large electric fields (similar to 0.1 TV/m) millimeters from the laser focus reveals that lateral energy transport continues long after the laser pulse has decayed. Numerical simulations confirm a very strong enhancement of electron density and electric field at the edges of the target.

Original languageEnglish
Pages (from-to)145001
Number of pages4
JournalPhysical Review Letters
Issue number14
Publication statusPublished - 6 Apr 2007


  • lateral electron transport
  • high-intensity laser-irradiated foils
  • ion emission
  • pharmacology

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