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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 26 — Dec. 24, 2007
  • pp: 17973–17979

Oval-like hollow intensity distribution of tightly focused femtosecond laser pulses in air

Y. T. Li, T. T. Xi, Z. Q. Hao, Z. Zhang, X. Y. Peng, K. Li, Z. Jin, Z. Y. Zheng, Q. Z. Yu, X. Lu, and J. Zhang  »View Author Affiliations

Optics Express, Vol. 15, Issue 26, pp. 17973-17979 (2007)

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The propagation of a tightly focused femtosecond laser pulse in air has been investigated. Unlike long-distance self-guided propagation of short laser pulses, a novel oval-like hollow distribution of the laser intensity is observed in the experiments and reproduced by the numerical simulations. The formation of the hollow structures can be explained by the interplay between ionization-induced refraction and Kerr self-focusing.

© 2007 Optical Society of America

OCIS Codes
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(320.2250) Ultrafast optics : Femtosecond phenomena

ToC Category:
Ultrafast Optics

Original Manuscript: August 13, 2007
Revised Manuscript: November 29, 2007
Manuscript Accepted: December 12, 2007
Published: December 17, 2007

Y. T. Li, T. T. Xi, Z. Q. Hao, Z. Zhang, X. Y. Peng, K. Li, Z. Jin, Z. Y. Zheng, Q. Z. Yu, X. Lu, and J. Zhang, "Oval-like hollow intensity distribution of tightly focused femtosecond laser pulses in air," Opt. Express 15, 17973-17979 (2007)

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