E. Courtens, A. Szöke
Physics Letters A
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, A. Szöke
Physics Letters A
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Ferroelectrics
E. Courtens, C. Lartigue, et al.
Zeitschrift für Physik B Condensed Matter
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EPL