Observing electron motion in molecules

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DOIResolve DOI: http://doi.org/10.1088/0953-4075/39/13/S14
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Journal titleJournal Of Physics: B, Atomic, Molecular And Optical Physics
AbstractWe study analytically the possibility for monitoring electron motion in a molecule using two ultrashort laser pulses. The first prepares a coherent superposition of two electronic molecular states whereas the second (attosecond pulse) photoionizes the molecule. We show that interesting information about electron dynamics can be obtained from measurement of the photoelectron spectra as a function of the time delay between two pulses. In particular, asymmetries in photoelectron angular distribution provide a simple signature of the electron motion within the initial time-dependent coherently coupled two molecular states. Both asymmetries and electron spectra show very strong two-centre interference patterns. We illustrate these effects using as an example a dissociating hydrogen molecular ion probed by the attosecond pulses.
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AffiliationNational Research Council Canada
Peer reviewedNo
NPARC number12339191
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Record identifier367dce8a-9d16-4bac-b46d-c79eebbf16f8
Record created2009-09-11
Record modified2016-05-09
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