H.J. Brückner, E. Courtens, et al.
Zeitschrift für Physik B Condensed Matter
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.
H.J. Brückner, E. Courtens, et al.
Zeitschrift für Physik B Condensed Matter
E. Courtens
IEEE JQE
E. Courtens, C. Lartigue, et al.
Zeitschrift für Physik B Condensed Matter
T. Bischofberger, E. Courtens
Physical Review Letters