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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 11 — Nov. 1, 2010
  • pp: 2387–2393

Terahertz polarization real-time imaging based on balanced electro-optic detection

Xinke Wang, Ye Cui, Wenfeng Sun, JiaSheng Ye, and Yan Zhang  »View Author Affiliations


JOSA A, Vol. 27, Issue 11, pp. 2387-2393 (2010)
http://dx.doi.org/10.1364/JOSAA.27.002387


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Abstract

A terahertz (THz) polarization real-time imaging system that can effectively reduce experimental time consumption for acquiring a sample’s polarization information is achieved. An alternative THz polarization measurement method is proposed. In this method, a 110 zinc-blende crystal is used as the sensor, and the probe polarization is adjusted to detect THz electric fields on the two orthogonal polarization components. The relative sensitivity of the imaging system to the THz polarization angle is estimated to be less than 0.5°. To illustrate the ability of the system, two samples are designed and measured by using the system. From their THz polarization real-time images, each region of these samples can be precisely presented. Experimental results clearly show the special influences of different materials on the THz polarization. This work effectively extends the information content obtained by THz real-time imaging and improves the feasibility of the imaging technique.

© 2010 Optical Society of America

OCIS Codes
(300.6270) Spectroscopy : Spectroscopy, far infrared
(110.6795) Imaging systems : Terahertz imaging
(130.5440) Integrated optics : Polarization-selective devices

ToC Category:
Imaging Systems

History
Original Manuscript: July 8, 2010
Revised Manuscript: September 13, 2010
Manuscript Accepted: September 13, 2010
Published: October 11, 2010

Citation
Xinke Wang, Ye Cui, Wenfeng Sun, JiaSheng Ye, and Yan Zhang, "Terahertz polarization real-time imaging based on balanced electro-optic detection," J. Opt. Soc. Am. A 27, 2387-2393 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-11-2387


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