M. Mali, J. Roos, et al.
Ferroelectrics
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.
M. Mali, J. Roos, et al.
Ferroelectrics
S. Alexander, E. Courtens, et al.
Physica A: Statistical Mechanics and its Applications
R. Vacher, T. Woignier, et al.
EPL
F. Moussa, E. Courtens
Physica B: Physics of Condensed Matter