J.-F. Berret, M. Meissner, et al.
Physical Review Letters
New results about the self-focusing of gaussian beams in nonlinear index media are presented. The focusing behavior of initially convergent beams is particularly interesting for powers near the critical power. © 1970.
J.-F. Berret, M. Meissner, et al.
Physical Review Letters
E. Courtens, G. Coddens, et al.
Physica Scripta
R.A. Cowley, T. Ryan, et al.
Zeitschrift für Physik B Condensed Matter
H. Grimm, E. Courtens, et al.
Physica B: Physics of Condensed Matter