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      Two-XUV-photon double ionization of Neon studied at the Extreme Light Infrastructure (ELI-ALPS)

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          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 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 a 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.

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          Author and article information

          Journal
          05 September 2022
          Article
          2209.01998
          6fd6b9b0-f5db-4e1a-adfa-d00732529de8

          http://creativecommons.org/licenses/by/4.0/

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          Custom metadata
          physics.atom-ph

          Atomic & Molecular physics
          Atomic & Molecular physics

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