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Optics Letters

Optics Letters


  • Vol. 30, Iss. 6 — Mar. 15, 2005
  • pp: 640–642

Terahertz generation with tandem seeded optical parametric generators

P. E. Powers, R. A. Alkuwari, J. W. Haus, K. Suizu, and H. Ito  »View Author Affiliations

Optics Letters, Vol. 30, Issue 6, pp. 640-642 (2005)

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A simple difference frequency generation (DFG) scheme based on two seeded optical parametric generators is presented as a tunable terahertz (THz) source. Using the nonlinear optical crystal 4-dimethylamino-N-methyl-4-stilbazolium-tosylate (DAST) as the DFG crystal, our system has demonstrated continuous and seamless tunable operation from 1.6 to 4.5 THz. The output bandwidth of the THz source is 2.4 GHz. The utility of the source over this spectral range is demonstrated by measuring a high-resolution transmission spectrum of water vapor in air.

© 2005 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing

P. E. Powers, R. A. Alkuwari, J. W. Haus, K. Suizu, and H. Ito, "Terahertz generation with tandem seeded optical parametric generators," Opt. Lett. 30, 640-642 (2005)

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