Article (Scientific journals)
Pump and probe ultrafast electron dynamics in LiH: a computational study
Nest, M.; Remacle, Françoise; Levine, Raphaël David
2008In New Journal of Physics, 10
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Abstract :
[en] A time-dependent multiconfiguration method with a large electronic basis set is used to compute the response of all the electrons of LiH to a few-cycle intense pump field followed by a probe pulse. The ultrashort pump pulse excites a coherent superposition of stationary electronic states and, by changing the pump parameters such as intensity, duration, polarization and phase of carrier frequency, one can steer the motion of the electrons. Particular attention is given to the control provided by the polarization and by the phase. For example, a change in polarization is used to select an electronic wave packet that is rotating in a plane perpendicular to the bond or rotation in a plane containing the bond. The electronic wave packet can be probed by a delayed second pulse. This delayed probe pulse is also included in the Hamiltonian with the result that the frequency dispersed probe spectrum can be computed and displayed as a two-dimensional plot.
Disciplines :
Chemistry
Author, co-author :
Nest, M.
Remacle, Françoise  ;  Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de chimie physique théorique
Levine, Raphaël David
Language :
English
Title :
Pump and probe ultrafast electron dynamics in LiH: a computational study
Publication date :
2008
Journal title :
New Journal of Physics
ISSN :
1367-2630
Publisher :
Institute of Physics, Bristol, United Kingdom
Volume :
10
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 January 2010

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