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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 14 — Jul. 6, 2009
  • pp: 11480–11485

Maker fringes in the Terahertz radiation produced by a 2-color laser field in air

Y. Liu, A. Houard, M. Durand, B. Prade, and A. Mysyrowicz  »View Author Affiliations

Optics Express, Vol. 17, Issue 14, pp. 11480-11485 (2009)

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The terahertz radiation produced by a 2-color femtosecond laser scheme strongly saturates and develops an oscillatory behavior with increasing power of the driving femtosecond laser pulses. This is explained by the formation of a plasma channel due to filamentation. Due to dispersion inside the filament and the Gouy phase shift, the phase difference between the 800 nm and 400 nm pulses varies along this plasma emitter. As a result, the local THz radiations generated along the filament interfere destructively or constructively, which manifests itself in the form of Maker fringes.

© 2009 OSA

OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(260.5210) Physical optics : Photoionization
(350.5400) Other areas of optics : Plasmas
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Nonlinear Optics

Original Manuscript: March 3, 2009
Revised Manuscript: May 11, 2009
Manuscript Accepted: May 11, 2009
Published: June 24, 2009

Y. Liu, A. Houard, M. Durand, B. Prade, and A. Mysyrowicz, "Maker fringes in the Terahertz radiation produced by a 2-color laser field in air," Opt. Express 17, 11480-11485 (2009)

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  1. M. Kress, T. Löffler, S. Eden, M. Thomson, and H. G. Roskos, “Terahertz-pulse generation by photoionization of air with laser pulses composed of both fundamental and second-harmonic waves,” Opt. Lett. 29(10), 1120–1122 (2004). [CrossRef]
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