Ultrafast Relaxation Dynamics of Highly-excited States in N2 Molecules Excited by Femtosecond XUV Pulses
1 Department of Physics, Politecnico di Milano, Institute of Photonics and Nanotechnologies, IFN-CNR, Piazza L. da Vinci 32, 20133 Milano, Italy
2 Department of Physics and Coherent X-ray Research Center (CXRC), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
3 FOM Institute AMOLF, Science Park 104, NL-1098 XG Amsterdam, The Netherlands
4 Max-Born-Institut, Max Born Strasse 2A, D-12489 Berlin, Germany
5 Université Paris-Est, Laboratoire Modélisation et Simulation Multi-Echelle,
We used velocity-map-imaging to measure electronic and nuclear dynamics in N2 molecules excited by a train of attosecond pulses. A time-to-space mapping of autoionization channel is demonstrated. It is found that the autoionization becomes energetically allowed when the two nuclei are still very close (~ 3 Å) and that it can be coherently manipulated by a strong femtosecond infrared pulse.
© Owned by the authors, published by EDP Sciences, 2013
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