Ratiometric Comparison of Intense Field Ionization of Atoms and Diatomic Molecules
Merrick J. DeWittCenter for Atomic, Molecular, and Optical Science, Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, USAE. WellsDepartment of Physics, University of Virginia, Charlottesville, Virginia 22904-4714R. R. JonesDepartment of Physics, University of Virginia, Charlottesville, Virginia 22904-4714
2001en
ABI
Annotatsiya
Intense-laser ionization rates for rare gas atoms and diatomic molecules have been precisely compared by making simultaneous measurements of ionization yield vs laser intensity for mixed atomic and molecular targets. At a given laser intensity, the N (2) and F (2) ionization yields are slightly greater than that of Ar. Conversely, comparison of O (2) and S (2) with Xe indicates significant ionization suppression in these molecules. Recent molecular ionization models that successfully describe ionization suppression in O (2) and its absence in N (2) fail to explain our observations in F (2) and S (2).
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