On the role of conical waves in self-focusing and filamentation of femtosecond pulses with nonlinear losses

  • Eugenijus Gaižauskas
  • , Audrius Dubietis
  • , Viačeslav Kudriašov
  • , Valdas Sirutkaitis
  • , Arnaud Couairon
  • , Daniele Faccio
  • , Paolo Di Trapani

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This chapter concerns with the experimental observations and theoretical investigations on the propagation of intense femtosecond pulses in water and fused silica. It emphasizes spontaneous transformation of a beam into a conical (Bessel-like) wave during the filamentary propagation in media with nonlinear losses. This transformation constitutes an interpretation of the energy reservoir surrounding the high intensity central core of the filament. The adopted model is shown as being able to explain related phenomena such as the formation of multiple filaments and that of X-waves, observed experimentally in both water and fused silica.

Original languageEnglish
Title of host publicationSelf-focusing
Subtitle of host publicationPast and Present: Fundamentals and Prospects
EditorsRobert Boyd, Svetlana Lukishova, Y.R. Shen
Pages457-479
Number of pages23
DOIs
Publication statusPublished - 2 Jan 2009

Publication series

NameTopics in Applied Physics
Volume114
ISSN (Print)0303-4216
ISSN (Electronic)1437-0859

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