Two-XUV-photon double ionization of neon

Orfanos, I.; Skantzakis, E.; Nayak, A.; Dumergue, M.; Kuhn, S.; Sansone, G.; Kling, M. F.; Schroeder, H.; Bergues, B.; Csontos, Janos; Toth, Szabolics; Borzonyi, Adam; Kahaly, S.; Varju, K.; Forembski, A.; Nikolopoulos, L. A. A.; Tzallas, P. und Charalambidis, D. (2022): Two-XUV-photon double ionization of neon. In: Physical Review A, Bd. 106, Nr. 4, 43117

Abstract

Two-XUV-photon double ionization of Ne, induced by an intense few-pulse attosecond train with a -4 fs envelope duration is investigated experimentally and theoretically. The experiment is performed at ELI-ALPS (Extreme Light Infrastructure Attosecond Light Pulse Source) utilizing the recently constructed 10 Hz gas phase high-order harmonic generation SYLOS GHHG-COMPACT beamline. A total pulse energy up to -1 mu J generated in argon in conjunction with high-reflectivity optics in the XUV region allowed the observation of the doubly charged state of Ne induced by 40 eV central XUV-photon energies. The interaction of the intense attosecond pulse train with Ne is also theoretically studied via second-order time-dependent perturbation theory equations of motion. The results of this work, combined with the feasibility of conducting XUV-pump-XUV-probe experiments, constitute a powerful tool for many potential applications. Those include attosecond pulse metrology as well as time-resolved investigations of the dynamics underlying direct and sequential double ionization and their electron correlation effects.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 2469-9926
• Sprache: Englisch