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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 21 — Oct. 13, 2008
  • pp: 16573–16580

External electric field control of THz pulse generation in ambient air

Wen-Feng Sun, Yun-Song Zhou, Xin-Ke Wang, and Yan Zhang  »View Author Affiliations


Optics Express, Vol. 16, Issue 21, pp. 16573-16580 (2008)
http://dx.doi.org/10.1364/OE.16.016573


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Abstract

A theoretical model has been proposed to describe the dependence of the THz wave generated in a laser-induced air plasma on the external electric field. Using this model we predict the following, (i) previously observed results show that the THz pulse enhances linearly with the increase of the external field; (ii) the THz pulse varies as a cosine function with the angle between the direction of the external electric field and the polarization of the incident exciting beam; (iii) and the amplitude is proportional to the square of the intensity of the incident pulse in a low energy region. These predictions are validated by our experiment.

© 2008 Optical Society of America

OCIS Codes
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(350.5400) Other areas of optics : Plasmas

ToC Category:
Ultrafast Optics

History
Original Manuscript: July 22, 2008
Revised Manuscript: August 24, 2008
Manuscript Accepted: August 29, 2008
Published: October 2, 2008

Citation
Wen-Feng Sun, Yun-Song Zhou, Xin-Ke Wang, and Yan Zhang, "External electric field control of THz pulse generation in ambient air," Opt. Express 16, 16573-16580 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-21-16573


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References

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