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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 6 — Mar. 12, 2012
  • pp: 6509–6514

High-efficiency terahertz pulse generation via optical rectification by suppressing stimulated Raman scattering process

Masaya Nagai, Eiichi Matsubara, and Masaaki Ashida  »View Author Affiliations

Optics Express, Vol. 20, Issue 6, pp. 6509-6514 (2012)

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We experimentally demonstrate high-efficiency terahertz pulse generation via optical rectification in LiNbO3. The spectral broadening of an excitation pulse via the stimulated Raman scattering process coincides with high-efficiency terahertz pulse generation, which enhances undesired stretching of the excitation pulse owing to the very high group velocity dispersion in LiNbO3. We avoid this by the bandwidth control of the excitation pulse and achieve the highest reported efficiency of 0.21% for energy conversion into a THz pulse.

© 2012 OSA

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Nonlinear Optics

Original Manuscript: February 2, 2012
Revised Manuscript: March 1, 2012
Manuscript Accepted: March 1, 2012
Published: March 5, 2012

Masaya Nagai, Eiichi Matsubara, and Masaaki Ashida, "High-efficiency terahertz pulse generation via optical rectification by suppressing stimulated Raman scattering process," Opt. Express 20, 6509-6514 (2012)

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