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Atmospheric and Oceanic Optics

, Volume 29, Issue 3, pp 263–266 | Cite as

Multiple filamentation of laser beams of different diameters in air along a 150-meter path

  • D. V. ApeksimovEmail author
  • A. A. Zemlyanov
  • A. N. Iglakova
  • A. M. Kabanov
  • O. I. Kuchinskaya
  • G. G. Matvienko
  • V. K. Oshlakov
  • A. V. Petrov
Nonlinear Optics

Abstract

Results of experiments on controlling the position and length of the filamentation region of femtosecond laser pulses along atmospheric paths 150 m long using different initial spatial focusing and defocusing are presented. The distribution of filaments over the filamentation region is found; the dependencies of the length of the filamentation region on the numerical aperture of a beam, its initial radius, and pulse power are derived. Emission spectra of targets made of different materials and placed in the filamentation region far from the radiation source are measured.

Keywords

laser radiation femtosecond pulse self-focusing filamentation atmosphere focusing defocusing spectrum 

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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • D. V. Apeksimov
    • 1
    Email author
  • A. A. Zemlyanov
    • 1
  • A. N. Iglakova
    • 1
  • A. M. Kabanov
    • 1
  • O. I. Kuchinskaya
    • 1
    • 2
  • G. G. Matvienko
    • 1
    • 2
  • V. K. Oshlakov
    • 1
  • A. V. Petrov
    • 1
  1. 1.V.E. Zuev Institute of Atmospheric Optics, Siberian BranchRussian Academy of SciencesTomskRussia
  2. 2.Tomsk State UniversityTomskRussia

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