E. Courtens, R. Vacher
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.
E. Courtens, R. Vacher
Zeitschrift für Physik B Condensed Matter
H. Grimm, E. Courtens, et al.
Physica B: Physics of Condensed Matter
M. Mali, J. Roos, et al.
Ferroelectrics
E. Courtens
IEEE JQE