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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. 8 — Aug. 10, 2005
  • pp: 475–477

Generation of broadband and multiple-peak THz radiation in aperiodically poled lithium niobate

Fucheng Chen, Xianfeng Chen, Yuping Chen, and Yuxing Xia  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue 8, pp. 475-477 (2005)


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Abstract

We theoretically analyze the generation of broadened and multi-peak terahertz (THz) radiation in aperiodically poled lithium niobate (APPLN), whose sequence of opposite domains is optimized by simulated annealing (SA) algorithm. The full-width at half maximum (FWHM) of the broadened THz radiation in our simulation is 0.26 THz. Both of the central wavelength and FWHM can be easily tuned by choosing proper objective functions. THz radiation with wider and flatter FWHM can be achieved by increasing the length of the lithium niobate crystal. The two-peak THz generation is also provided as an example of multi-peak with the central wavelengths at 1.68 and 1.80 THz, respectively.

© 2005 Chinese Optics Letters

OCIS Codes
(130.3060) Integrated optics : Infrared
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

Citation
Fucheng Chen, Xianfeng Chen, Yuping Chen, and Yuxing Xia, "Generation of broadband and multiple-peak THz radiation in aperiodically poled lithium niobate," Chin. Opt. Lett. 3, 475-477 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-8-475


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