Nonadiabatic theory of strong-field atomic effects under elliptical polarization

Journal Article · Fri Dec 14 04:00:00 EST 2012 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4752079· OSTI ID:22099135

Xu, Wang; Eberly, J. H. ^[1]

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1. Rochester Theory Center and the Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States)

Elliptically polarized laser fields provide a new channel for access to strong-field processes that are either suppressed or not present under linear polarization. Quantum theory is mostly unavailable for their analysis, and we report here results of a systematic study based on a classical ensemble theory with solution of the relevant ab inito time-dependent Newton equations for selected model atoms. The study's approach is necessarily nonadiabatic, as it follows individual electron trajectories leading to single, double, and triple ionizations. Of particular interest are new results bearing on open questions concerning experimental reports of unexplained species dependences as well as double-electron release times that are badly matched by a conventional adiabatic quantum tunneling theory. We also report the first analysis of electron trajectories for sequential and non-sequential triple ionization.

• OSTI ID: 22099135
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 22 Vol. 137; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
ELECTRONS
EQUATIONS
LASER RADIATION
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
POLARIZATION
TIME DEPENDENCE
TRAJECTORIES
TUNNEL EFFECT