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

Kelkensberg, F.; Lefebvre, C.; Siu, W.; Ghafur, O.; Nguyen-Dang, T. T.; Atabek, O.; Keller, A.; Serov, V.; Johnsson, Per LU and Swoboda, Marko LU , et al. (2009) In Physical Review Letters 103(12).
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... (More)
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. (Less)
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publication status
published
subject
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Physical Review Letters
volume
103
issue
12
publisher
American Physical Society
external identifiers
  • wos:000270139000019
  • scopus:70349289201
ISSN
1079-7114
DOI
10.1103/PhysRevLett.103.123005
language
English
LU publication?
yes
id
c1076960-46f9-43e7-8de2-7c893d23ac2f (old id 1489932)
date added to LUP
2009-10-21 10:53:10
date last changed
2017-12-10 03:40:55
@article{c1076960-46f9-43e7-8de2-7c893d23ac2f,
  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.},
  author       = {Kelkensberg, F. and Lefebvre, C. and Siu, W. and Ghafur, O. and Nguyen-Dang, T. T. and Atabek, O. and Keller, A. and Serov, V. and Johnsson, Per and Swoboda, Marko and Remetter, Thomas and L'Huillier, Anne and Zherebtsov, S. and Sansone, G. and Benedetti, E. and Ferrari, F. and Nisoli, M. and Lepine, F. and Kling, M. F. and Vrakking, M. J. J.},
  issn         = {1079-7114},
  language     = {eng},
  number       = {12},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Molecular Dissociative Ionization and Wave-Packet Dynamics Studied Using Two-Color XUV and IR Pump-Probe Spectroscopy},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.103.123005},
  volume       = {103},
  year         = {2009},
}