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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 9 — Apr. 28, 2008
  • pp: 6471–6478

Forward and backward Terahertz-wave difference-frequency generations from periodically poled lithium niobate

T. D. Wang, S. T. Lin, Y. Y. Lin, A. C. Chiang, and Y. C. Huang  »View Author Affiliations

Optics Express, Vol. 16, Issue 9, pp. 6471-6478 (2008)

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We report terahertz-wave generation in the wavelength range of 190~210 and 457~507 µm from forward and backward difference frequency generations, respectively, in a 3.2-cm long multi-grating periodically poled lithium niobate (PPLN) crystal. The grating period of the PPLN crystal varies form 63 to 70 µm in 1-µm increments. The extraordinary refractive index of lithium niobate in the THz-wave range was precisely deduced from the quasi-phase-matching condition of the difference frequency generations.

© 2008 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

ToC Category:
Nonlinear Optics

Original Manuscript: March 27, 2008
Revised Manuscript: April 18, 2008
Manuscript Accepted: April 18, 2008
Published: April 22, 2008

T. D. Wang, S. T. Lin, Y. Y Lin, A. C. Chiang, and Y. C. Huang, "Forward and backward terahertz-wave difference-frequency generations from periodically poled lithium niobate," Opt. Express 16, 6471-6478 (2008)

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