Angular Distribution of Photoelectrons in Strongly Driven Multiphoton Transitions
- 11 May 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 46 (19) , 1278-1281
- https://doi.org/10.1103/physrevlett.46.1278
Abstract
The behavior of photoelectron angular distributions in a strongly driven resonant multiphoton ionization process is discussed. It is shown that the angular distribution changes drastically with increasing intensity as a result of the ac Stark shifting of the levels. Moreover, under strong saturation conditions the distribution reaches a limiting form significantly different from the form predicted by perturbation theory. The effects of the laser bandwidth on the angular distribution are also discussed briefly.Keywords
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