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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 31, Iss. 2 — Feb. 1, 2014
  • pp: 321–324

Filamentation of femtosecond laser pulses with spatial chirp in air

Tingting Xi, Zhijie Zhao, and Zuoqiang Hao  »View Author Affiliations


JOSA B, Vol. 31, Issue 2, pp. 321-324 (2014)
http://dx.doi.org/10.1364/JOSAB.31.000321


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Abstract

Filamentation of femtosecond laser pulses with spatial chirp in air is investigated numerically. Spatiotemporal redistribution of energy occurs initially due to the spatial chirp and is subsequently reinforced by group-velocity dispersion and self-focusing. It induces spatiotemporal rotation of pulse, curved multiple filaments, delay of filament onset distance, and enhancement of supercontinuum generation. The method of introducing spatial chirp to the laser pulse offers a new way to control filaments’ onset, distribution, and supercontinuum enhancement, which would be very useful in their potential applications.

© 2014 Optical Society of America

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(260.5950) Physical optics : Self-focusing
(320.1590) Ultrafast optics : Chirping

ToC Category:
Ultrafast Optics

History
Original Manuscript: October 22, 2013
Revised Manuscript: December 16, 2013
Manuscript Accepted: December 17, 2013
Published: January 23, 2014

Citation
Tingting Xi, Zhijie Zhao, and Zuoqiang Hao, "Filamentation of femtosecond laser pulses with spatial chirp in air," J. Opt. Soc. Am. B 31, 321-324 (2014)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-31-2-321

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