Self-focusing Distance of Very High Power Laser Pulses

Self-focusing Distance of Very High Power Laser Pulses

We show numerically for continuous-wave beams and experimentally for femtosecond pulses propagating in air, that the collapse distance of intense laser beams in a bulk Kerr medium scales as 1/P;1/2 for input powers P that are moderately above the critical power for self focusing, but that at higher...

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Veröffentlicht in:Optics express 2005-07, Vol.13 (15), p.5897-5903
Hauptverfasser: Fibich, Gadi, Eisenmann, Shmuel, Ilan, Boaz, Erlich, Yossi, Fraenkel, Moshe, Henis, Zohar, Gaeta, Alexander, Zigler, Arie
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Sprache:eng
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Zusammenfassung:We show numerically for continuous-wave beams and experimentally for femtosecond pulses propagating in air, that the collapse distance of intense laser beams in a bulk Kerr medium scales as 1/P;1/2 for input powers P that are moderately above the critical power for self focusing, but that at higher powers the collapse distance scales as 1/P.
ISSN:1094-4087
1094-4087
DOI:10.1364/OPEX.13.005897