Self-focusing of wave beams with a plateau-shaped intensity distribution
Amosov A.A. , Bakhvalov N.S. , Zhileikin Ya.M. , Korobkin V.V. , Prokhorov A.M. , Serov R.V.
It is shown by means of a numerical investigation method on a computer that only one focus can be formed during the self-focusing of axially symmetrical wave beams with a plateau-shaped intensity distribution. In this situation the total power flowing into the focus can be considerably greater than the critical value.