Investigating two-photon double ionization of D2 by XUV-pump-XUV-probe experiments
- Jiang, Y. H.
- Rudenko, A.
- Pérez-Torres, J. F.
- Herrwerth, Oliver
- Foucar, L.
- Kurka, M.
- Kühnel, K. U.
- Toppin, M.
- Plésiat, E.
- Morales, F.
- Martín, F.
- Lezius, Matthias
- Kling, Matthias F.
- Jahnke, T.
- Dörner, R.
- Sanz-Vicario, J. L.
- van Tilborg, J.
- Belkacem, A.
- Schulz, M.
- Ueda, K.
- Zouros, T. J. M.
- Düsterer, S.
- Treusch, R.
- Schröter, C. D.
- Moshammer, R.
- Ullrich, J.
Publication date
January 2010
DOIAbstract
We used a split-mirror setup attached to a reaction microscope at the free-electron laser in Hamburg (FLASH) to perform an XUV-pump–XUV-probe experiment by tracing the ultrafast nuclear wave-packet motion in the D2+(1sσg) with <10 fs time resolution. Comparison with time-dependent calculations shows excellent agreement with the measured vibrational period of 22±4 fs in D2+, points to the importance of accurately knowing the internuclear distance-dependent ionization probability, and paves the way to control sequential and nonsequential two-photon double-ionization contributions
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