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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. 26, Iss. 5 — May. 1, 2009
  • pp: 930–938

Effects of initial focusing on the blueshifting of high-power laser pulses

James K. Koga  »View Author Affiliations


JOSA B, Vol. 26, Issue 5, pp. 930-938 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000930


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Abstract

By directly solving Maxwell’s equations including higher-order gas polarization and by using a semi-analytical method for pulse propagation, we study the generation of plasma by high-irradiance laser pulses propagating in a neutral gas and determine the effect of initial focusing on the blueshift of the laser pulse. By varying the initial focusing length, we find that longer than a specific focusing length the blueshift is nearly fixed and shorter than the specific focusing length that the shift changes with the initial focusing length.

© 2009 Optical Society of America

OCIS Codes
(190.4180) Nonlinear optics : Multiphoton processes
(190.7220) Nonlinear optics : Upconversion
(260.3230) Physical optics : Ionization
(260.5950) Physical optics : Self-focusing
(350.5400) Other areas of optics : Plasmas

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 9, 2008
Revised Manuscript: February 19, 2009
Manuscript Accepted: February 26, 2009
Published: April 3, 2009

Citation
James K. Koga, "Effects of initial focusing on the blueshifting of high-power laser pulses," J. Opt. Soc. Am. B 26, 930-938 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-5-930

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