Decomposition of the transition phase in multi-sideband schemes for reconstruction of attosecond beating by interference of two-photon transitions
Reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) is a technique that can be used to determine the phases of atomic transition elements in photoionization processes. In the traditional RABBITT scheme, the so-called asymptotic approximation considers the measured phase as a sum of the Wigner phase linked to a single-photon ionization process and the continuum-continuum phase associated with further single-photon transitions in the continuum. In this paper, we extend the asymptotic approximation to multi-sideband RABBITT schemes. The predictions from this approximation are then compared with results obtained by an ab initio calculation based on solving the time-dependent Schrödinger equation for atomic hydrogen.
Physical Review A
Digital Object Identifier (DOI)
Bharti, Divya; Atri-Schuller, David; Menning, Gavin; Hamilton, Kathryn R.; Moshammer, Robert; Pfeifer, Thomas; Douguet, Nicolas; Bartschat, Klaus; and Harth, Anne, "Decomposition of the transition phase in multi-sideband schemes for reconstruction of attosecond beating by interference of two-photon transitions" (2021). Faculty Publications. 5419.