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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 24 — Dec. 15, 2013
  • pp: 5373–5376

Pump pulse width and temperature effects in lithium niobate for efficient THz generation

C. Vicario, B. Monoszlai, Cs. Lombosi, A. Mareczko, A. Courjaud, J. A. Fülöp, and C. P. Hauri  »View Author Affiliations

Optics Letters, Vol. 38, Issue 24, pp. 5373-5376 (2013)

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We present a study on THz generation in lithium niobate pumped by a powerful and versatile Yb:CaF2 laser. The unique laser system delivers transform-limited pulses of variable duration (0.38–0.65 ps) with pulse energies up to 15 mJ and center wavelength of 1030 nm. From previous theoretical investigations, it is expected that such laser parameters are ideally suited for efficient THz generation. Here, we present experimental results on both the conversion efficiency and the THz spectral shape for variable pump pulse durations and for different crystal temperatures, down to 25 K. We experimentally verify the optimum pump parameters for the most efficient and broadband THz generation.

© 2013 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(190.0190) Nonlinear optics : Nonlinear optics
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 24, 2013
Revised Manuscript: November 5, 2013
Manuscript Accepted: November 7, 2013
Published: December 9, 2013

C. Vicario, B. Monoszlai, Cs. Lombosi, A. Mareczko, A. Courjaud, J. A. Fülöp, and C. P. Hauri, "Pump pulse width and temperature effects in lithium niobate for efficient THz generation," Opt. Lett. 38, 5373-5376 (2013)

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