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Title: Two- and three-photon ionization in the noble gases

Journal Article · · Phys. Rev. A; (United States)

By using a characteristic Green's function for an exactly solvable Schroedinger equation with an approximation to the central potential of Hermann and Skillman, the cross section for nonresonant two- and three-photon ionization of Ne, Ar, Kr, and Xe were calculated in jl coupling. Expressions for cross sections in jl coupling are given. Comparison with the Ar two-photon cross section of Pindzola and Kelly, calculated using the many-body theory, the dipole-length approximation, and LS coupling shows a disagreement of as much as a factor of 2. The disagreement appears to arise from distortion introduced by shifting the Green's-function resonances to experimental values.

Research Organization:
Sandia National Laboratories, Albuquerque, New Mexico 87185
OSTI ID:
6456983
Journal Information:
Phys. Rev. A; (United States), Vol. 24:2
Country of Publication:
United States
Language:
English