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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. 9 — Sep. 1, 2009
  • pp: A90–A94

Optics InfoBase > JOSA B > Volume 26 > Issue 9 > Page A90

Terahertz wave generation in nitrogen gas using shaped optical pulses

Masashi Yamaguchi and Jayashis Das  »View Author Affiliations


JOSA B, Vol. 26, Issue 9, pp. A90-A94 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000A90


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Abstract

We demonstrate the control of terahertz (THz) wave generation in nitrogen gas using shaped optical pulses with a spatial light modulator (SLM). We employ a genetic optimization algorithm to optimize the optical excitation pulses for the THz wave generation. A comparison of the optimization processes using THz power and second harmonics intensity as fitness functions is given. We also show that THz pulse trains with variable separation of pulses can be generated by using a series of periodic rectangular optical phases in Fourier space.

© 2009 Optical Society of America

OCIS Codes
(320.5540) Ultrafast optics : Pulse shaping
(320.7120) Ultrafast optics : Ultrafast phenomena

History
Original Manuscript: February 18, 2009
Revised Manuscript: May 8, 2009
Manuscript Accepted: May 30, 2009
Published: July 8, 2009

Virtual Issues
July 17, 2009 Spotlight on Optics

Citation
Masashi Yamaguchi and Jayashis Das, "Terahertz wave generation in nitrogen gas using shaped optical pulses," J. Opt. Soc. Am. B 26, A90-A94 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-9-A90


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