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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 18 — Sep. 1, 2008
  • pp: 14192–14199

Planar second-harmonic generation with noncollinear pumps in disordered media

Vito Roppo, David Dumay, Jose Trull, Crina Cojocaru, Solomon M. Saltiel, Kestutis Staliunas, Ramon Vilaseca, Dragomir N. Neshev, Wieslaw Krolikowski, and Yuri S. Kivshar  »View Author Affiliations

Optics Express, Vol. 16, Issue 18, pp. 14192-14199 (2008)

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We study experimentally the process of the second harmonic generation by two noncollinear beams in quadratic nonlinear crystals with a disordered structure of ferroelectric domains. We show that the second-harmonic radiation is emitted in the form of two cones as well as in a plane representing the cross-correlation of the two fundamental pulses. We demonstrate the implementation of this parametric process for characterisation of femtosecond pulses, enabling the estimation of pulse width, chirp, and front tilt. This is achieved through monitoring the evolution of the autocorrelation trace inside the nonlinear crystal.

© 2008 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in

ToC Category:
Nonlinear Optics

Original Manuscript: August 6, 2008
Revised Manuscript: August 21, 2008
Manuscript Accepted: August 21, 2008
Published: August 26, 2008

Vito Roppo, David Dumay, Jose Trull, Crina Cojocaru, Solomon M. Saltiel, Kestutis Staliunas, Ramon Vilaseca, Dragomir N. Neshev, Wieslaw Krolikowski, and Yuri S. Kivshar, "Planar second-harmonic generation with noncollinear pumps in disordered media," Opt. Express 16, 14192-14199 (2008)

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