Plateau in above threshold ionization spectra
G. G. PaulusDepartment of Physics, University of Crete, Crete, GreeceW. NicklichDepartment of Physics, University of Crete, Crete, GreeceHuale XuDepartment of Physics, University of Crete, Crete, GreeceP. LambropoulosDepartment of Physics, University of Crete, Crete, GreeceH. WaltherDepartment of Physics, University of Crete, Crete, Greece
1994en
ABI
Abstract
We present photoelectron energy spectra for the rare gas atoms in strong 40 fs, 630 nm laser pulses. A new property in the above threshold ionization distribution is described, namely, a plateau. Numerical calculations using one- and three-dimensional models suggest that at least in part this is a one-electron effect. All rare gas atoms investigated show similar behavior, indicating that the plateau in above threshold ionization is a universal phenomenon. We discuss a simple mechanism possibly responsible for the plateau.
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Cited by 20 references