Time delay between singly and doubly ionizing wavepackets in laser-driven helium

Jonathan Parker, B.J.S. Doherty, Karen Cairns, Kenneth Taylor

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)

Abstract

We present calculations of the time delay between single and double ionization of helium, obtained from full-dimensionality numerical integrations of the helium-laser Schroedinger equation. The notion of a quantum mechanical time delay is defined in terms of the interval between correlated bursts of single and double ionization. Calculations are performed at 390 and 780 nm in laser intensities that range from 2 X 10^14 to 14 X 10^14 W /cm^2. We find results consistent with the rescattering model of double ionization but supporting its classical interpretation only at 780 nm.
Original languageEnglish
Pages (from-to)L393-L400
Number of pages8
JournalJournal of Physics B: Atomic Molecular and Optical Physics
Volume36
Issue number21
DOIs
Publication statusPublished - 14 Nov 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

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