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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 6 — Mar. 12, 2012
  • pp: 6825–6834

Remote THz generation from two-color filamentation: long distance dependence

J.-F. Daigle, F. Théberge, M. Henriksson, T.-J. Wang, S. Yuan, M. Châteauneuf, J. Dubois, M. Piché, and S. L. Chin  »View Author Affiliations

Optics Express, Vol. 20, Issue 6, pp. 6825-6834 (2012)

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Remote terahertz (THz) generation from two-color filamentation is investigated as a function of the onset position of filaments. THz signals emitted by filaments produced at distances up to 55 m from the laser source were measured. However, from 9 m to 55 m, the THz signal decayed monotonically for increasing onset positions. With a simple calculation, the dominant factors associated to this decay were identified as group velocity mismatch of the two-color pulses and linear diffraction induced by focusing and propagating the second harmonic pulse.

© 2012 OSA

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing

ToC Category:
Nonlinear Optics

Original Manuscript: December 12, 2011
Revised Manuscript: January 13, 2012
Manuscript Accepted: January 19, 2012
Published: March 9, 2012

J.-F. Daigle, F. Théberge, M. Henriksson, T.-J. Wang, S. Yuan, M. Châteauneuf, J. Dubois, M. Piché, and S. L. Chin, "Remote THz generation from two-color filamentation: long distance dependence," Opt. Express 20, 6825-6834 (2012)

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