Open AccessReconstruction of atomic resonances with attosecond streaking
Author(s) -
Rocío Borrego-Varillas,
Matteo Lucchini
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.415463
Subject(s) - attosecond , streaking , physics , optics , fano resonance , coupling (piping) , spectrogram , resonance (particle physics) , atomic physics , laser , ultrashort pulse , computer science , materials science , plasmon , artificial intelligence , metallurgy
Recent development of spectroscopic techniques based on attosecond radiation has given the community the right tools to study the timing of the photoelectron process. In this work we investigate the effect of Fano resonances in attosecond streaking spectrograms and the application of standard phase-reconstruction algorithms. We show that while the existence of the infrared coupling (ac-Stark shift) hinders the applicability of FROG-like methods, under certain conditions it is still possible to use standard reconstruction algorithms to retrieve the photoemission delay of the bare resonance. Finally, we propose two strategies to study the strength of IR coupling using the attosecond streaking technique.