Abstract.
Coupled-channel calculations for multiphoton ionization probabilities of helium through interaction with intensive short laser pulses are presented. Besides Slater-like orbitals we use regular Coulomb wavepackets in our configurational interaction basis to describe the continuum. Linearly polarized laser pulses of 3.8 fs duration and 2.96 x 1014 Wcm-2 peak intensity have been used for frequencies between 0.2-1.2 a.u. The results are compared with other ab initio calculations.
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Received: 8 April 2003, Published online: 9 September 2003
PACS:
32.80.Fb Photoionization of atoms and ions - 32.80.Wr Other multiphoton processes
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Barna, I.F., Rost, J.M. Photoionization of helium with ultrashort XUV laser pulses. Eur. Phys. J. D 27, 287–290 (2003). https://doi.org/10.1140/epjd/e2003-00272-8
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DOI: https://doi.org/10.1140/epjd/e2003-00272-8