M Abu-samha and L B Madsen 2008 J. Phys. B: At. Mol. Opt. Phys. 41 151001 doi:10.1088/0953-4075/41/15/151001
M Abu-samha and L B Madsen
Show affiliationsWe present a theoretical analysis of the longitudinal momentum distribution for Ne and Ar, from the multiphoton to the tunnelling ionization regime. Our theoretical models reproduce recent experimental measurements very well. We find evidence for resonant ionization in the multiphoton regime. In the tunnelling regime, on the other hand, resonant ionization is not active and direct ionization does contribute to the bimodal structure in the momentum distribution of Ne.
32.80.Fb Photoionization of atoms and ions
32.80.Rm Multiphoton ionization and excitation to highly excited states
Issue 15 (14 August 2008)
Received 3 June 2008, in final form 18 June 2008
Published 28 July 2008
M Abu-samha and L B Madsen 2008 J. Phys. B: At. Mol. Opt. Phys. 41 151001
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