Spatio-Temporal and Spectral Transformation of Femtosecond Pulsed Beams with Phase Dislocation Propagating Under Conditions of Self-action in Transparent Solid-State Dielectrics

  • S. A. ShlenovEmail author
  • E. V. Vasilyev
  • V. P. Kandidov
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 119)


Self-action of a femtosecond optical vortex in fused silica at a wavelength of 1900 nm is analyzed by means of numerical simulations. The formation of a multi-focus ring structure is demonstrated. We show that self-focusing in a ring of relatively large radius occurs without plasma generation. The frequency spectrum of the pulse is broadening mainly into the Stokes band.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • S. A. Shlenov
    • 1
    Email author
  • E. V. Vasilyev
    • 1
  • V. P. Kandidov
    • 1
  1. 1.Faculty of Physics and International Laser CenterM.V. Lomonosov Moscow State UniversityMoscowRussia

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