Darmstadt 2008 – scientific programme

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A: Fachverband Atomphysik

A 1: Attosecond electron dynamics

A 1.1: Invited Talk

Monday, March 10, 2008, 14:00–14:30, 3C

Fragmenting multi-electron atoms: from single photons to attosecond pulses — •Agapi Emmanouilidou — University of Oregon

Attosecond collisions govern the ionization of multi-electron atoms by single photon absorption. These collisional processes are consistent with the electronic break-up geometry we predict for energies close to threshold. Confirming the predicted break-up geometries and observing in time these collisional patterns will be the impetus for future experiments. In single photon ionization the electronic correlation is essential for full fragmentation of many electron atoms. This is not the case when the atoms are driven by ultra-short laser pulses. We also discuss the correlated motion of the escaping electrons in multi-electron atoms driven by attosecond pulses.