Observation of Enhanced Ionization of Molecular Ions in Intense Laser Fields
- 27 May 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 76 (22) , 4140-4143
- https://doi.org/10.1103/physrevlett.76.4140
Abstract
Using ultrashort pulse multiphoton ionization, we launch a wave packet in the state that dissociates into the fragments and I. We measure its multiphoton ionization probability as a function of its internuclear distance with an intense delayed probe pulse. If the probe pulse is polarized parallel to the internuclear axis, we observe a peak in the ionization yield at a critical distance of 5–6 Å. No such enhancement is seen with perpendicular polarization in agreement with the model of enhanced ionization by electron localization.
Keywords
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