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arXiv · 2011.02989

Decomposition of the transition phase in multi-sideband RABBITT schemes

Divya Bharti·David Atri-Schuller·Gavin Menning·Kathryn R. Hamilton·Robert Moshammer·Thomas Pfeifer·Nicolas Douguet·Klaus Bartschat·Anne Harth
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Abstract

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 (cc) phase associated with further single-photon transitions in the continuum. In this paper, we explore the possibility of extending the asymptotic approximation to multi-sideband RABBITT schemes. The predictions from this approximation are then compared with results obtained by an {\it ab initio} calculation based on solving the time-dependent Schr\"odinger equation for atomic hydrogen.

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Divya Bharti, David Atri-Schuller, Gavin Menning, Kathryn R. Hamilton, Robert Moshammer, Thomas Pfeifer, Nicolas Douguet, Klaus Bartschat, Anne Harth. 2020-11-05. Decomposition of the transition phase in multi-sideband RABBITT schemes. https://doi.org/10.1103/physreva.103.022834

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