par Rosen, C A;Dorr, Martin 
;Eichmann, U.;Sandner, Wolfgang
Référence Physical review letters, 83, 22, page (4514-4517)
Publication Publié, 1999-11
;Eichmann, U.;Sandner, WolfgangRéférence Physical review letters, 83, 22, page (4514-4517)
Publication Publié, 1999-11
Article révisé par les pairs
| Résumé : | We have investigated the two-electron dynamics of asymmetric doubly highly excited high angular momentum states in Sr interacting with a laser field. Even down to modest laser intensities the dominant fragmentation process is the photoionization of the inner electron. Analysis of the final ionic state reveals that the near-threshold ionization process is compatible with a time dependent screening of the nuclear charge on a time scale comparable to the orbit time of the outer electron. This is evidence of long-range dipolar correlation forces during the ionization process. |
