QUANTUM HOLOGRAPHY IN ATOMIC PHOTOELECTRON SPECTRA

S. D. LÓPEZ; D. G. ARBÓ

Hannover

Conferencia; International Conference on Quantum Dynamics in Tailored Intense Fields; 2021

German Research Foundation

When an intense short laser pulse interacts with an atom ionizing it, the photoelectron spectra present several structures that can be understood as double slit interferences in the time domain, namely intra- and inter-cycle interferences [Phys. Rev. A 82, 043426]. Another type of structures requires interference of direct electron trajectories with others that interact with the parent core. In a classical picture, the rescattering trajectories return to the parent ion driven by the laser field and rescatters off to the detector. Some structures can be interpreted as holograms, i.e. the interference pattern between the direct (reference) and the rescattered (signal beam) electrons. In this way, the information of the interaction is encoded in the interference pattern between the reference and the signal. In this talk, we present a theoretical analysis of interferences using a numerical solution of the time dependent Schrödinger equation (TDSE) and the semiclassical two-step model (SCTS). We analyze the ionization of atomic hydrogen to characterize the role that the long-range Coulomb interaction plays in the holographic structures [Phys. Rev. A 100, 023419 (2019)].