Freebound and boundbound radiative transitions in an intense laser field
Abstract
The transition rates for freebound and boundbound radiative absorption and emission in an intense laser field were calculated. In the approximations used here, the rates were represented by the product of two functions. One function, which contains all the details of the atomic structure, was independent of the laser field. The other function contained all the corrections caused by the intense laser field. The calculations were done using first order perturbation theory to describe the effects of the intense laser field on the bound state levels and using a low frequency approximation for the laser field. It is shown that both these approximations are quite good for the states and laser intensities of interest. The intense field correction factor for the rate of boundfree transitions for electrons with a Boltzmann distribution of energies was calculated. Numerical results for the correction factor for the Boltzmann case are presented.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 July 1980
 Bibcode:
 1980STIN...8116458S
 Keywords:

 Electric Fields;
 Electron Energy;
 Field Strength;
 Laser Outputs;
 Absorption Spectra;
 Perturbation Theory;
 Plasmas (Physics);
 Wave Functions;
 Lasers and Masers