ИСТИНА

In this work we studied the stochastic and regularized filamentation of terawatt femtosecond radiation along an extended atmospheric path. We have shown that a stable pattern of filaments regularized using the amplitude mask exists on the path in a certain range of peak power per one hole of the amplitude mask. In this case, the distance at which such a stable pattern is formed turns out to be significantly less than the distance predicted by the Marburger formula, and is determined first of all by the diffraction of laser radiation at a single aperture.