Laser Assisted Atomic Ionization by a Short XUV Pulse

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report on numerical results of energy spectra of photoelectrons emitted by irradiating an hydrogen atom with a relatively weak single attosecond XUV pulse in the presence of a two-color IR laser pulse. The densities of probabilities have been obtained by treating the interaction of the atom with the XUV radiation at the first order of the time-dependent perturbation theory and describing the emitted electron through the Coulomb-Volkov wavefunction. The results of the calculations agree with the ones found by numerically solving the time-dependent Schrödinger equation. Specifically, we use an algorithm that implements an high recision variant of the Cranck Nicolson integration method and allows to take into account the singularity in the Coulomb potential. Analysis of the spectra obtained for very long pulses show that certain features may be explained in terms of quantum interferences in the time domain.
Original languageEnglish
Title of host publicationBook of Abstracts on CD PS2.18 (poster)
Number of pages1
Publication statusPublished - 2015

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