Long-wave infrared megafilaments in air

S. Ya Tochitsky, E. C. Welch, M. N. Polyanskiy, I. V. Pogorelsky, P. Panagiotopoulos, M. Kolesik, E. M. Wright, S. W. Koch, J. V. Moloney, C. Joshi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We demonstrate self-channeling of a terawatt picosecond CO2 laser beam in air. A single centimeter-diameter megafilament guiding multi-Joule pulse over ~35m is observed. This self-guiding is described by a novel nonlinear propagation and ionization model.

Original languageEnglish (US)
Title of host publicationNonlinear Optics, NLO 2019
PublisherOptica Publishing Group (formerly OSA)
ISBN (Print)9781943580620
StatePublished - 2019
EventNonlinear Optics, NLO 2019 - Waikoloa Beach, United States
Duration: Jul 15 2019 → …

Publication series

NameOptics InfoBase Conference Papers
VolumePart F134-NLO 2019
ISSN (Electronic)2162-2701


ConferenceNonlinear Optics, NLO 2019
Country/TerritoryUnited States
CityWaikoloa Beach
Period7/15/19 → …

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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