Multiphoton ionization of a hydrogen atom
Abstract
The multiphoton ionization of a hydrogen atom is investigated in terms of electronphoton interactions on the basis of perturbation theory. A Sturm expansion of the Coulomb Green's function is used in calculations of the radial amplitudes of multiphoton processes. The corresponding matrix elements are written in compact form by means of hypergeometric functions. Results are given for numerical calculations of the cross sections for two and threephoton ionization from the ground and excited ns stat5t of a hydrogen atom.
 Publication:

Optika i Spektroskopiia
 Pub Date:
 March 1976
 Bibcode:
 1976OpSp...40..417K
 Keywords:

 Atomic Energy Levels;
 Hydrogen Atoms;
 Ionization Cross Sections;
 Perturbation Theory;
 Photoionization;
 PhotonElectron Interaction;
 Green'S Functions;
 Hypergeometric Functions;
 Matrices (Mathematics);
 Numerical Analysis;
 Tables (Data);
 Atomic and Molecular Physics