E. Courtens, H. Vogt
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, H. Vogt
Zeitschrift für Physik B Condensed Matter
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Journal of Non-Crystalline Solids
E. Courtens
IEEE JQE
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Zeitschrift für Physik B Condensed Matter