[Zurück]

R. Pazourek, S. Nagele, K. Doblhoff-Dier, J. Feist, C. Lemell, K. Tökési, J. Burgdörfer:
"Probing scattering phase shifts by attosecond streaking";
Vortrag: 27th International Conference on Photonic, Electronic and Atomic Collisions (XXVII ICPEAC), Belfast/UK; 27.07.2011 - 02.08.2011; in: "XXVII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2011) 27 July to 2 August 2011, Belfast, Northern Ireland, UK", Journal of Physics: Conference Series, 388 (2012), S. 0120291 - 0120296.

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 infuence of the streaking infrared feld 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 felds lead to a streaking phase shift that can be described classically.

http://dx.doi.org/10.1088/1742