Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses.

@article{Akzbek2002ThirdharmonicGA,
  title={Third-harmonic generation and self-channeling in air using high-power femtosecond laser pulses.},
  author={Neşet Ak{\"o}zbek and Atsushi Iwasaki and Andreas Becker and Michael Scalora and See Leang Chin and Charles M. Bowden},
  journal={Physical review letters},
  year={2002},
  volume={89 14},
  pages={143901}
}
It is shown, both theoretically and experimentally, that during laser pulse filamentation in air an intense ultrashort third-harmonic pulse is generated forming a two-colored filament. The third-harmonic pulse maintains both its peak intensity and energy over distances much longer than the characteristic coherence length. We argue that this is due to a… CONTINUE READING