Angular distributions and angular correlations in sequential two-photon double ionization of atoms

作者：Fritzsche S^*; Grum Grzhimailo A N; Gryzlova E V; Kabachnik N M

来源：Journal of Physics B: Atomic, Molecular and Optical Physics , 2008, 41(16): 165601.

DOI：10.1088/0953-4075/41/16/165601

A general expression for the angular correlation function of the two emitted photoelectrons in sequential two-photon double ionization of atoms is derived and discussed. The expression can be used in the analysis of angle-resolved coincidence experiments. The angular distributions of the emitted electrons as measured in non-coincidence experiments are also discussed. As an example, the cross sections, angular distributions of photoelectrons and angular correlation functions for the sequential two-photon double ionization of Ne and Ar atoms have been calculated within the MCHF and MCDF approaches. The results are compared with recent experiments performed at the free-electron laser (FLASH) facility.

• 出版日期2008-8-28