Photoionization of helium with ultrashort XUV laser pulses
Max-Planck-Institute for the Physics of Complex Systems,
Nöthnitzer Straße 38, 01187 Dresden, Germany
Corresponding author: a email@example.com
Published online: 9 September 2003
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 Wcm-2 peak intensity have been used for frequencies between 0.21.2 a.u. The results are compared with other ab initio calculations.
PACS: 32.80.Fb – Photoionization of atoms and ions / 32.80.Wr – Other multiphoton processes
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003