Multiphoton Processes in a Hydrogen Atom

摘要: Within the framework of time-dependent perturbation theory, general expressions are derived for cross section multiphoton processes induced by radiation acting on a hydrogen atom. Bound-bound transitions involving emission single quantum and bound-free calculated wide range photon energies. In case resonance, transition probability is also discussed. The procedure used to evaluate sums over intermediate states described. numerical computation allows one compare results obtained various competing processes.