Berlin 2015 – scientific programme

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O: Fachverband Oberflächenphysik

O 69: Ultrafast Electron and Spin Dynamics

O 69.6: Poster

Wednesday, March 18, 2015, 18:15–21:00, Poster A

2D RABBITT spectroscopy for the investigation of attosecond dynamics — •Martin Piecuch, Martin Aeschlimann, and Stefan Mathias — University of Kaiserslautern and Research Center OPTIMAS, TU Kaiserslautern, 67663 Kaiserslautern, Germany

Reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) is a powerful and well-established method for attosecond pulse characterization [Paul et al., Science 292,1689 (2001)]. Additionally, the RABBITT technique has been very useful to measure and understand basic dynamics in the high-harmonic generation process itself in the past. Here, we present theoretical calculations of an extension of the RABBITT scheme by combining it with modern techniques derived from 2D spectroscopy: excitation with multiple laser pulses, and phase cycling to select specific coherence pathways. We show that these methods open up new and powerful routes to study attosecond dynamics in atoms, molecules, and materials in the future.