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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 11 — Nov. 1, 2010
  • pp: 2350–2359

Comparison of phase-sensitive imaging techniques for studying terahertz waves in structured LiNbO 3

Christopher A. Werley, Qiang Wu, Kung-Hsuan Lin, C. Ryan Tait, August Dorn, and Keith A. Nelson  »View Author Affiliations


JOSA B, Vol. 27, Issue 11, pp. 2350-2359 (2010)
http://dx.doi.org/10.1364/JOSAB.27.002350


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Abstract

Four phase-sensitive imaging methods (Talbot, phase contrast, Sagnac, and polarization gating) used for detecting terahertz-frequency waves in structured lithium niobate slabs are compared analytically and experimentally. It is demonstrated that both phase contrast and a self-compensating polarization gating geometry can generate in-focus images of the sample and quantitatively measure the terahertz electric field. Of these two methods polarization gating has better signal-to-noise ratio and so is preferred for most situations, while phase contrast imaging has better spatial resolution and so is preferred for measurements involving fine structures or near-field effects.

© 2010 Optical Society of America

OCIS Codes
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Imaging Systems

History
Original Manuscript: July 6, 2010
Manuscript Accepted: September 3, 2010
Published: October 18, 2010

Citation
Christopher A. Werley, Qiang Wu, Kung-Hsuan Lin, C. Ryan Tait, August Dorn, and Keith A. Nelson, "Comparison of phase-sensitive imaging techniques for studying terahertz waves in structured LiNbO3," J. Opt. Soc. Am. B 27, 2350-2359 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-11-2350

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» Media 1: AVI (1872 KB)     

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