Self-focusing of ultraintense femtosecond optical vortices in air

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Our experiments show that the critical power for self-focusing collapse of femtosecond vortex beams in air is significantly higher than that of a flattop beam and grows approximately linearly with the vortex order. With less than 10% of initial transverse intensity modulation of the beam profiles, the dominant mode of self-focusing collapse is the azimuthal breakup of the vortex rings into individual filaments, the number of which grows with the input beam power. The generated bottlelike distributions of plasma filaments rotate on propagation in the direction determined by the sense of vorticity.

Original languageEnglish (US)
Article number023901
JournalPhysical Review Letters
Volume111
Issue number2
DOIs
StatePublished - Jul 10 2013

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self focusing
vortices
air
filaments
vortex rings
vorticity
modulation
propagation
profiles

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Self-focusing of ultraintense femtosecond optical vortices in air. / Polynkin, Pavel G; Ament, C.; Moloney, Jerome V.

In: Physical Review Letters, Vol. 111, No. 2, 023901, 10.07.2013.

Research output: Contribution to journalArticle

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