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Optics Letters

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  • Vol. 27, Iss. 12 — Jun. 15, 2002
  • pp: 1067–1069

Optical rectification in an area with a diameter comparable to or smaller than the center wavelength of terahertz radiation

J. Z. Xu and X.-C. Zhang  »View Author Affiliations


Optics Letters, Vol. 27, Issue 12, pp. 1067-1069 (2002)
http://dx.doi.org/10.1364/OL.27.001067


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Abstract

We report the measurement of optically rectified terahertz (THz) wave power relative to the optical excitation area. Rectified THz wave power reaches its maximum when radius r of the optical excitation area is comparable to the center wavelength of the rectified THz radiation. When r is smaller than the center wavelength of the rectified THz radiation, an r2 relationship is demonstrated. A model based on optical rectification and Bethe's diffraction theory is used to describe this relationship.

© 2002 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.5390) Ultrafast optics : Picosecond phenomena
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

Citation
J. Z. Xu and X.-C. Zhang, "Optical rectification in an area with a diameter comparable to or smaller than the center wavelength of terahertz radiation," Opt. Lett. 27, 1067-1069 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-12-1067


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