Molecular Dissociative Ionization and Wave-Packet Dynamics Studied Using Two-Color XUV and IR Pump-Probe Spectroscopy

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Title Molecular Dissociative Ionization and Wave-Packet Dynamics Studied Using Two-Color XUV and IR Pump-Probe Spectroscopy
Author Kelkensberg, F; Lefebvre, C.; Siu, W.; Ghafur, Omair; nguyen-Dang, T. T.; Atabak, O.; Keller, A.; Serov, V.; Johnsson, P.; Swoboda, M.; Remetter, T.; L'Huiller, A.; Zherebtsov, S.; Sansone, G.; Benedetti, E.; Ferrari, F.; Nisoli, M.; Lépine, F.; Kling, M. F.; Vrakking, M. J. J.
Journal Name Physical Review Letters
Year Published 2009
Place of publication United States
Publisher American Physical Society
Abstract We present a combined theoretical and experimental study of ultrafast wave-packet dynamics in the dissociative ionization of H_{2} molecules as a result of irradiation with an extreme-ultraviolet (XUV) pulse followed by an infrared (IR) pulse. In experiments where the duration of both the XUV and IR pulses are shorter than the vibrational period of H_{2};{+}, dephasing and rephasing of the vibrational wave packet that is formed in H_{2};{+} upon ionization of the neutral molecule by the XUV pulse is observed. In experiments where the duration of the IR pulse exceeds the vibrational period of H_{2};{+} (15 fs), a pronounced dependence of the H;{+} kinetic energy distribution on XUV-IR delay is observed that can be explained in terms of the adiabatic propagation of the H_{2};{+} wave packet on field-dressed potential energy curves.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1103/PhysRevLett.103.123005
Volume 103
Issue Number 12
Page from 123005-1
Page to 123005-4
ISSN 1079-7114
Date Accessioned 2012-01-12; 2012-02-16T05:42:51Z
Date Available 2012-02-16T05:42:51Z
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Atomic, Molecular, Nuclear, Particle and Plasma Physics
URI http://hdl.handle.net/10072/42837
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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