Ponderomotive force and AC Stark shift in multiphoton ionisation
- 28 November 1983
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 16 (22), L679-L685
- https://doi.org/10.1088/0022-3700/16/22/001
Abstract
A non-perturbative approach to the photoionisation of a model atom in arbitrarily strong fields is described. An explanation is given for the disappearance of the lowest energy electrons in a multiphoton ionisation experiment at very high intensities, in terms of the AC Stark shift of the ionisation potential of the atom, followed by ponderomotive acceleration of the photoelectrons.Keywords
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