%0 Journal Article %1 Fu2001 %A Fu, L. B. %A Liu, J. %A Chen, J. %A Chen, S. G. %D 2001 %J Physical Review A %K above-threshold-ionization atoms dependence double-ionization dynamics electron harmonic-generation ionization nonsequential rescattering spectra tunnel %N 4 %P - %T Classical collisional trajectories as the source of strong-field double ionization of helium in the knee regime %U /brokenurl#<Go to ISI>://000168095300089 %V 6304 %X In this paper, the quasistatic model is extended to describe the double ionization of helium in an intense linearly polarized field, yielding insight into the two-electron correlation effect in the ionization dynamics. Our numerical calculations reproduce the excessive double ionization and the photoelectron spectra observed experimentally both quantitatively and qualitatively. Moreover, it is shown that the classical collisional trajectories are the main source of the double ionization in the knee regime where the double ionization yield is much higher than that predicted by the sequential single active electron models, and responsible for the unusual angular distribution of the photoelectrons.

@article{Fu2001, abstract = {In this paper, the quasistatic model is extended to describe the double ionization of helium in an intense linearly polarized field, yielding insight into the two-electron correlation effect in the ionization dynamics. Our numerical calculations reproduce the excessive double ionization and the photoelectron spectra observed experimentally both quantitatively and qualitatively. Moreover, it is shown that the classical collisional trajectories are the main source of the double ionization in the knee regime where the double ionization yield is much higher than that predicted by the sequential single active electron models, and responsible for the unusual angular distribution of the photoelectrons.}, added-at = {2011-09-14T10:31:46.000+0200}, author = {Fu, L. B. and Liu, J. and Chen, J. and Chen, S. G.}, biburl = {https://www.bibsonomy.org/bibtex/221f76b8139072bc28b2e2a099f36bcd7/xinguo1}, endnotereftype = {Journal Article}, interhash = {6f6619ba4b56b19ea74180eb507813da}, intrahash = {21f76b8139072bc28b2e2a099f36bcd7}, issn = {1050-2947}, journal = {Physical Review A}, keywords = {above-threshold-ionization atoms dependence double-ionization dynamics electron harmonic-generation ionization nonsequential rescattering spectra tunnel}, month = Apr, note = {422AG Times Cited:38 Cited References Count:30}, number = 4, owner = {xinguo}, pages = {-}, shorttitle = {Classical collisional trajectories as the source of strong-field double ionization of helium in the knee regime}, timestamp = {2011-09-14T10:31:46.000+0200}, title = {Classical collisional trajectories as the source of strong-field double ionization of helium in the knee regime}, url = {/brokenurl#<Go to ISI>://000168095300089}, volume = 6304, year = 2001 }