Attosecond-scale absorption at extreme intensities

A. F. Savin, A. J. Ross, M. Serzans, R. M. G. M. Trines, L. Ceurvorst, N. Ratan, B. Spiers, R. Bingham, A. P. L. Robinson, P. A. Norreys

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A novel non-ponderomotive absorption mechanism, originally presented by Baeva et al. in one dimension, is extended into higher dimensions for the first time. This absorption mechanism, the Zero Vector Potential (ZVP), is expected to dominate the interactions of ultra-intense laser pulses with critically over-dense plasmas such as those that are expected with the Extreme Light Infrastructure laser systems. It is shown that the mathematical form of the ZVP mechanism and its key scaling relations found by Baeva et al. in 1D are identically reproduced in higher dimensions. The two dimensional particle-in-cell simulations are then used to validate both the qualitative and quantitative predictions of the theory.
Original languageEnglish
Article number113103
Number of pages8
JournalPhysics of Plasmas
Issue number11
Early online date8 Nov 2017
Publication statusPublished - 30 Nov 2017


  • Zero Vector Potential (ZVP)
  • ultra-intense laser pulses
  • Extreme Light Infrastructure laser systems
  • particle-in-cell method

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