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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 34 — Dec. 1, 2013
  • pp: 8305–8309

Broadband THz-wave generation by satisfying the noncollinear phase-matching condition with a reflected signal beam

Takuya Akiba, Yasuhiro Akimoto, Motoaki Tamura, Koji Suizu, Katsuhiko Miyamoto, Takashige Omatsu, Jun Takayanagi, Tomoya Takada, and Kodo Kawase  »View Author Affiliations


Applied Optics, Vol. 52, Issue 34, pp. 8305-8309 (2013)
http://dx.doi.org/10.1364/AO.52.008305


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Abstract

We demonstrated broadband terahertz (THz) wave generation by satisfying the noncollinear phase-matching condition with a reflected signal beam. We constructed a dual-wavelength optical parametric oscillator with two potassium titanium oxide phosphate crystals pumped by a frequency-doubled Nd:YAG laser. The collinear pump and signal waves were irradiated into a lithium niobate crystal. The pump and the signal waves were reflected at the crystal surface. Because the pump and the signal waves have a finite beam diameter, when the reflected signal wave and unreflected pump wave were irradiated at the correct angle, the noncollinear phase-matching condition was satisfied. By changing the incident angle to the crystal, broadband THz-wave generation with a range of over 0.2–7.2 THz was achieved.

© 2013 Optical Society of America

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 25, 2013
Revised Manuscript: October 31, 2013
Manuscript Accepted: October 31, 2013
Published: November 25, 2013

Citation
Takuya Akiba, Yasuhiro Akimoto, Motoaki Tamura, Koji Suizu, Katsuhiko Miyamoto, Takashige Omatsu, Jun Takayanagi, Tomoya Takada, and Kodo Kawase, "Broadband THz-wave generation by satisfying the noncollinear phase-matching condition with a reflected signal beam," Appl. Opt. 52, 8305-8309 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-34-8305


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