Laser plasma interaction at high intensities

Summary form only given. This paper presents the problem of anomalous penetration of laser radiation in an inhomogeneous plasma. To organize the work the nonlinear dielectric constant is obtained. The self-focusing equation relating the variation of beamwidth parameter with distance of propagation, self-trapping condition and critical power are evaluation followed by numerical calculations. The present theory has a much wider range of applications compared to earlier theories, and is therefore applicable at all intensities, high and low.