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Article Dans Une Revue Physical Review Letters Année : 2004

Observation of Large Quadrupolar Effects in a Slow Photoelectron Imaging Experiment

Résumé

We have studied nondipolar effects in resonance-enhanced multiphoton ionization of Xe and have observed an azimuthal dependence of the photoelectron angular distribution on a quadrupole resonance, as well as a very large asymmetry with respect to the direction of the laser propagation close to the resonance, which is understood in terms of interference between dipole- and quadrupole-allowed ionization channels. The observed asymmetry in the photoelectron angular distribution provides insight into the ejection of slow photoelectrons near an ionization threshold.
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hal-00005062 , version 1 (15-06-2005)

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F. Lépine, S. Zamith, A. de Snaijer, Ch. Bordas, M. J. J. Vrakking. Observation of Large Quadrupolar Effects in a Slow Photoelectron Imaging Experiment. Physical Review Letters, 2004, 93, pp.233003. ⟨10.1103/PhysRevLett.93.233003⟩. ⟨hal-00005062⟩
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