Decomposition of the transition phase in multi-sideband RABBITT schemes

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 Schrödinger equation for atomic hydrogen.

arXiv comment10 pages, 4 figures

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• Photoionization in the time and frequency domain
• Theory of attosecond delays in laser-assisted photoionization
• Attosecond Pulse-shaping using a seeded free-electron laser
• Energy-dependent photoemission delays from noble metal surfaces by attosecond interferometry
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Cited by in corpus (9)

• Multi-photon above threshold ionization of multi-electron atoms and molecules using the R-matrix approach
• Analysis of RABITT time delays using the stationary multi-photon molecular R-matrix approach
• Phase delays in $\omega -2\omega$ above-threshold ionization
• Angular dependence of the Wigner time delay upon strong field ionization from an aligned p-orbital
• Analytical model for attosecond time delays and Fano's propensity rules in the continuum
• Two-path interference in the resonance-enhanced few-photon ionization of atoms
• Dipole-laser coupling delay in two-color (RABBITT) photoionization of polar molecules
• Extracting RABBITT-like phase information from time-dependent transient absorption spectra
• General properties of the RABBITT at parity mixing conditions