Nonperturbative calculation of partial differential rates for multiphoton ionization of a hydrogen atom in a strong laser field

Journal Article · Fri Jul 15 04:00:00 EDT 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.38.1098· OSTI ID:7058954

Potvliege, R M; Shakeshaft, R

We show how the multiphoton-ionization matrix element for an atom in a laser field at intensities beyond the regime of perturbation theory can be calculated from the standard Floquet expansion of the electron wave function. We expand the harmonic components in a discrete complex Sturmian basis set, and we evaluate the resulting (divergent) sum for the matrix element by using the Pade method. We present results for partial rates and angular distributions for hydrogen.

• Research Organization: Physics Department, University of Southern California, Los Angeles, California 90089-0484
• OSTI ID: 7058954
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 38:2; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ATOMS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTS
HYDROGEN
IONIZATION
LASER RADIATION
MATRIX ELEMENTS
MULTI-PHOTON PROCESSES
NONMETALS
PADE APPROXIMATION
PHOTOIONIZATION
RADIATIONS