Long-range self-channeling of infrared laser pulses in air: A new propagation regime without ionization

G. Méchain, A. Couairon, Y. B. André, C. D'Amico, M. Franco, B. Prade, Stylianos Tzortzakis, A. Mysyrowicz, R. Sauerbrey

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176 Citations (Scopus)

Abstract

We report long-range self-channeling in air of multiterawatt femtosecond laser pulses with large negative initial chirps. The peak intensity in the light channels is at least one order of magnitude lower than required for multiphoton ionization of air molecules. A detailed comparison is made between experiments and realistic 3 + 1-dimensional numerical simulations. It reveals that the mechanism limiting the growth of intensity by filamentation is connected with broken revolution symmetry in the transverse diffraction plane.

Original languageEnglish
Pages (from-to)379-382
Number of pages4
JournalApplied Physics B: Lasers and Optics
Volume79
Issue number3
Publication statusPublished - Aug 2004
Externally publishedYes

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

Méchain, G., Couairon, A., André, Y. B., D'Amico, C., Franco, M., Prade, B., Tzortzakis, S., Mysyrowicz, A., & Sauerbrey, R. (2004). Long-range self-channeling of infrared laser pulses in air: A new propagation regime without ionization. Applied Physics B: Lasers and Optics, 79(3), 379-382.