Suppression of multiple ionization of atomic ions in intense ultrafast laser pulses

J.B. Greenwood, I.M.G. Johnston, P. McKenna, I.D. Williams, T.R.J. Goodworth, J.H. Sanderson, W.A. Bryan, A.A.A. El-Zein, W.R. Newell, A.J. Langley, E.J. Divall

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The interaction of an intense laser field with a beam of atomic ions has been investigated experimentally for the first time. The ionization dynamics of Ar+ ions and Ar neutrals in a 60 fs, 790 nm laser pulse have been compared and contrasted at intensities up to 1016 W cm-2. Our results show that nonsequential ionization from an Ar+ target is strongly suppressed compared with that from the corresponding neutral target. We have also observed for the first time the strong field ionization of high lying target metastable levels in the Ar+ beam.
Original languageEnglish
Pages (from-to)233001-1
Number of pages233000
JournalPhysical Review Letters
Issue number23
Publication statusPublished - May 2002


  • lasers
  • atomic ions
  • laser pulses

Cite this