Potential barrier effects in two-photon ionization processes

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.053414· OSTI ID:21528674

Pi, Liang-Wen; Starace, Anthony F ^[1]

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1. Department of Physics and Astronomy, University of Nebraska, Lincoln, Nebraska 68588-0299 (United States)

Potential barriers in the effective radial potential experienced by a photoexcited electron are shown to result in dramatic, resonancelike effects in two-photon ionization processes. In a two-photon ionization process, such potential barriers may affect not only the final state of the electron (as in ordinary photoionization), but also the intermediate-state electron wave packet corresponding to the absorption of one photon. We illustrate these effects for the generalized two-photon cross sections for ionization of Ar and Xe within a single-active-electron, central-potential model.

• OSTI ID: 21528674
• Journal Information: Physical Review. A, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevA.82.053414; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
CENTRAL POTENTIAL
CROSS SECTIONS
ELECTRONS
INTERMEDIATE STATE
PHOTOIONIZATION
TWO-BODY PROBLEM
WAVE PACKETS
ELEMENTARY PARTICLES
FERMIONS
IONIZATION
LEPTONS
MANY-BODY PROBLEM
POTENTIALS
SORPTION