Скачать или смотреть Recollision in strong laser field physics

A recollision is the impact between an early ionized electron of an atom (e.g. helium), driven by an intense laser field, and one or several core electrons of the parent ion, upon reversal of the linearly polarized field. The recollision is responsible for nonsequential (correlated) multiple ionization of atoms and molecules and has become the keystone of attosecond science. Here we give an example for linear polarization of the recollision mechanism: one electron (blue), under the influence of the laser field, experiences several returns to the nucleus where it interacts with the other core electron (red). For more details: PRL, 102, 173002 (2009); PRL, 104, 043005 (2010); http://www.cpt.univ-mrs.fr/~mauger.