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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4659–4662

Post-filament self-trapping of ultrashort laser pulses

A. V. Mitrofanov, A. A. Voronin, D. A. Sidorov-Biryukov, G. Andriukaitis, T. Flöry, A. Pugžlys, A. B. Fedotov, J. M. Mikhailova, V. Ya. Panchenko, A. Baltuška, and A. M. Zheltikov  »View Author Affiliations

Optics Letters, Vol. 39, Issue 16, pp. 4659-4662 (2014)

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Laser filamentation is understood to be self-channeling of intense ultrashort laser pulses achieved when the self-focusing because of the Kerr nonlinearity is balanced by ionization-induced defocusing. Here, we show that, right behind the ionized region of a laser filament, ultrashort laser pulses can couple into a much longer light channel, where a stable self-guiding spatial mode is sustained by the saturable self-focusing nonlinearity. In the limiting regime of negligibly low ionization, this post-filamentation beam dynamics converges to a large-scale beam self-trapping scenario known since the pioneering work on saturable self-focusing nonlinearities.

© 2014 Optical Society of America

OCIS Codes
(190.5940) Nonlinear optics : Self-action effects
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

Original Manuscript: May 20, 2014
Revised Manuscript: June 18, 2014
Manuscript Accepted: June 23, 2014
Published: August 5, 2014

A. V. Mitrofanov, A. A. Voronin, D. A. Sidorov-Biryukov, G. Andriukaitis, T. Flöry, A. Pugžlys, A. B. Fedotov, J. M. Mikhailova, V. Ya. Panchenko, A. Baltuška, and A. M. Zheltikov, "Post-filament self-trapping of ultrashort laser pulses," Opt. Lett. 39, 4659-4662 (2014)

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