Erlangen 2018 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 13: Posters 1: Ultrafast Spectroscopy

MO 13.17: Poster

Dienstag, 6. März 2018, 16:15–18:15, Orangerie

First results of XUV transient absorption spectroscopy in the ionization continuum of molecular hydrogen — •Gergana D. Borisova, Paul Birk, Veit Stooß, Maximilian Hartmann, Alexander Blättermann, Nikola Mollov, Robert Moshammer, Christian Ott, and Thomas Pfeifer — Max-Planck-Institut für Kernphysik, Heidelberg

In studies of the ionization dynamics in atoms and molecules after light-matter interaction, usually electrons and/or ions are detected, as they are the natural products of the ionization process. Investigating ionization dynamics in molecular hydrogen is therefore predominantly done by measuring charged particles [1]. Here, we experimentally consider the complementary approach of attosecond transient-absorption spectroscopy (ATAS) and aim at the energy region around the Qn doubly excited resonances. First results of this technically challenging experiment will be presented, with emphasis on a systematic study of various obstacles that arise when searching for weak and broadband spectral signatures in an ATAS experiment.

[1] Palacios et al., J. Phys. B: At. Mol. Opt. Phys. 48, (2015) 242001

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