Probing scattering phase shifts by attosecond streaking

Details Probing scattering phase shifts by attosecond streaking Probing scattering phase shifts by attosecond streaking

2011-11-17

arxiv.org/abs/1111.4172v1

Physics

Atomic Physics

Scientific paper

Attosecond streaking is one of the most fundamental processes in attosecond science allowing for a mapping of temporal (i.e. phase) information on the energy domain. We show that on the single-particle level attosecond streaking time shifts contain spectral phase information associated with the Eisenbud-Wigner-Smith (EWS) time delay, provided the influence of the streaking infrared field is properly accounted for. While the streaking phase shifts for short-ranged potentials agree with the associated EWS delays, Coulomb potentials require special care. We show that the interaction between the outgoing electron and the combined Coulomb and IR laser fields lead to a streaking phase shift that can be described classically.

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