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Optics Letters

Optics Letters


  • Vol. 30, Iss. 9 — May. 1, 2005
  • pp: 1030–1032

Tunable terahertz waves generated by mixing two copropagating infrared beams in GaP

Wei Shi and Yujie J. Ding  »View Author Affiliations

Optics Letters, Vol. 30, Issue 9, pp. 1030-1032 (2005)

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By mixing two copropagating coherent beams near 1 µm in a zinc blende GaP crystal, we have efficiently generated coherent terahertz (THz) waves. Such efficient conversion is made possible by use of a reststrahlen band in the THz region to achieve phase matching in an isotropic crystal. A tuning range as wide as 71.1-2830 µm(0.106-4.22 THz) was achieved, whereas the highest output peak power reached 15.6 W at 173 µm. To obtain such a tuning range we continuously tuned the wavelength of one coherent infrared beam within a bandwidth of ∼15.3 nm.

© 2005 Optical Society of America

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

Wei Shi and Yujie J. Ding, "Tunable terahertz waves generated by mixing two copropagating infrared beams in GaP," Opt. Lett. 30, 1030-1032 (2005)

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