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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 20 — Sep. 27, 2010
  • pp: 21484–21489

Effects of uncertain phase-matching wave vectors of rotating fan-out type poled LiNbO3 on THz generation

Chul Kang, Yeung Lak Lee, Changsoo Jung, Hyung Keun Yoo, and Chul-Sik Kee  »View Author Affiliations


Optics Express, Vol. 18, Issue 20, pp. 21484-21489 (2010)
http://dx.doi.org/10.1364/OE.18.021484


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Abstract

We investigated terahertz pulses from a rotating fan-out type poled lithium niobate (LiNbO3) pumped by femtosecond laser pulses. In particular, the rotating fan-out type poled sample produces an uncertain phase-matching wave vector perpendicular to input laser pulses. Such a wave vector allowed us to observe terahertz pulses normally unobservable from bulk or periodically poled LiNbO3 at large rotation angles because of the terahertz wave critical angle of LiNbO3. Further, we explained center frequency dependence on rotation angles by difference frequency generation process with the uncertain wave vector. We also discussed bandwidth dependence and terahertz pulse power regarding rotation angles.

© 2010 OSA

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

ToC Category:
Nonlinear Optics

History
Original Manuscript: August 9, 2010
Revised Manuscript: September 15, 2010
Manuscript Accepted: September 16, 2010
Published: September 24, 2010

Citation
Chul Kang, Yeung Lak Lee, Changsoo Jung, Hyung Keun Yoo, and Chul-Sik Kee, "Effects of uncertain phase-matching wave vectors of rotating fan-out type poled LiNbO3 on THz generation," Opt. Express 18, 21484-21489 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-20-21484


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References

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