in intense laser fields: mechanisms for enhanced ionization in the multiphoton regime
- 1 January 1998
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 31 (1) , 87-104
- https://doi.org/10.1088/0953-4075/31/1/011
Abstract
Multiphoton ionization rates from the lower states of are calculated within the non-perturbative Floquet framework. The mechanisms for enhanced ionization in the multiphoton regime are studied as a function of laser frequency, laser intensity and internuclear separation. We contrast these mechanisms with those that apply in the DC-like tunnelling regime. Our results are compared with those of other calculations where these are available. The intensity range of validity of the 2-electronic state model is explored. Finally, the question of laser-induced adiabatic stabilization is discussed.Keywords
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