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, Stephan 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
PublisherOSA - The Optical Society
ISBN (Electronic)9781557528209
StatePublished - Jan 1 2019
EventNonlinear Optics, NLO 2019 - Waikoloa Beach, United States
Duration: Jul 15 2019 → …

Publication series

NameOptics InfoBase Conference Papers
VolumePart F134-NLO 2019


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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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