Interaction of a high-intensity EM field with a low-density plasma

The interaction of a high-intensity EM field with a low-density plasma, including a collisionless plasma and a weakly ionized gas, is considered. The electron velocity distribution function is obtained exactly from a Boltzmann equation in each case without making any small perturbation approximation. The electron velocity distribution function obtained gives rise to significant results for some plasma parameters as functions of the intensity of EM field. It is also shown that conventional results for the small field case can be obtained from the results presented in this paper.