Electronic correlations in double ionization of atoms in pump-probe experiments
Institut für Theoretische Physik und Astrophysik, Christian-Albrechts-Universität zu Kiel D-24098 Kiel, Germany, EU
Accepted: 20 August 2010
The ionization dynamics of a two-electron atom in an attosecond XUV-infrared pump-probe experiment is simulated by solving the time-dependent two-electron Schrödinger equation. A dramatic change of the double-ionization (DI) yield with variation of the pump-probe delay is reported and the governing role of electron-electron correlations is shown. The results allow for a direct control of the DI yield and of the relative strength of double and single ionization.
PACS: 31.15.V- – Electron correlation calculations for atoms, ions and molecules / 32.80.-t – Photoionization and excitation / 34.80.Dp – Atomic excitation and ionization
© EPLA, 2010