2024/05/21 by Morgan Berkane, Camille Lévêque, Berkane, Morgan +7 · 1 citation
Materials Science · Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Electron and X-Ray Spectroscopy Techniques #Advanced Electron Microscopy Techniques and Applications #Laser-Matter Interactions and Applications
paper · pdf · doi:10.48550/arxiv.2405.12603
We consider the two-photon ionization of Hydrogen-like atoms. We find an approximate expression of the long-range phase based on an asymptotic expansion of the continuum eigenfunctions within the Wentzel-Kramers-Brillouin approximation. Combined with commonly used perturbative approaches, the resulting analytic formalism can treat, at the same time, the two-photon propensity rules, the anisotropy in the continuum-continuum photoionization time delay and the soft-photon regime.