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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. 11 — Nov. 1, 2009
  • pp: 2095–2100

Plasma Bragg density gratings produced by optical-field ionization

Lu-Le Yu, Zheng-Ming Sheng, and Jie Zhang  »View Author Affiliations


JOSA B, Vol. 26, Issue 11, pp. 2095-2100 (2009)
http://dx.doi.org/10.1364/JOSAB.26.002095


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Abstract

Plasma Bragg density gratings produced by optical-field ionization in underdense gas under the irradiation of two counterpropagating laser pulses at laser intensities around 10 13 W cm 2 are investigated by particle-in-cell simulation. The grating is composed of interlacing layers of neutral gas and plasma (or partially ionized gas) with its density and period controlled by the initial gas density, laser wavelengths, and intersecting angles of the two laser pulses. The study shows that such gratings have a longer lifetime, about nanoseconds, as compared with those driven by the laser ponderomotive force at higher laser intensities around 10 15 W cm 2 . They may be used for phase-matched high-harmonic generation, laser self-guiding, laser pulse compression and stretching, etc.

© 2009 Optical Society of America

OCIS Codes
(260.3230) Physical optics : Ionization
(320.7120) Ultrafast optics : Ultrafast phenomena
(190.4223) Nonlinear optics : Nonlinear wave mixing
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

History
Original Manuscript: June 26, 2007
Revised Manuscript: September 17, 2009
Manuscript Accepted: September 21, 2009
Published: October 16, 2009

Citation
Lu-Le Yu, Zheng-Ming Sheng, and Jie Zhang, "Plasma Bragg density gratings produced by optical-field ionization," J. Opt. Soc. Am. B 26, 2095-2100 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-11-2095


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