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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 2 — Feb. 1, 2012
  • pp: 232–237

Frequency tuning enhancement of few-cycle femtosecond laser pulses by double-pump-induced N2 index modulation

Fei Wang, Hongbing Jiang, and Qihuang Gong  »View Author Affiliations


JOSA B, Vol. 29, Issue 2, pp. 232-237 (2012)
http://dx.doi.org/10.1364/JOSAB.29.000232


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Abstract

Considering field-free molecular alignment enhancement by multiple pulses in the hollow fiber, we theoretically analyze how long-distance propagation influences the final alignment degree. Based on this, we propose a way to enhance frequency tuning of few-cycle femtosecond laser pulse by multi-pump-induced N2 index modulation. It is found that two pumps are optimized with parameters of 100 fs and 3×1013Wcm2. The tuning range of the initial 5 fs 800 nm probe pulse by double aligning pumps is about twice that by a single pump.

© 2012 Optical Society of America

OCIS Codes
(140.3600) Lasers and laser optics : Lasers, tunable
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(320.7090) Ultrafast optics : Ultrafast lasers
(020.2649) Atomic and molecular physics : Strong field laser physics

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 22, 2011
Revised Manuscript: November 4, 2011
Manuscript Accepted: November 4, 2011
Published: January 23, 2012

Citation
Fei Wang, Hongbing Jiang, and Qihuang Gong, "Frequency tuning enhancement of few-cycle femtosecond laser pulses by double-pump-induced N2 index modulation," J. Opt. Soc. Am. B 29, 232-237 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-2-232


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