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Journal Articles Journal of Infrared, Millimeter and Terahertz Waves Year : 2014

Review of Terahertz Tomography Techniques


Terahertz and millimeter waves penetrate various dielectric materials, including plastics, ceramics, crystals, and concrete, allowing terahertz transmission and reflection images to be considered as a new imaging tool complementary to X-Ray or Infrared. Terahertz imaging is a well-established technique in various laboratory and industrial applications. However, these images are often two-dimensional. Three-dimensional, transmission-mode imaging is limited to thin samples, due to the absorption of the sample accumulated in the propagation direction. A tomographic imaging procedure can be used to acquire and to render three-dimensional images in the terahertz frequency range, as in the optical, infrared or X-ray regions of the electromagnetic spectrum. In this paper, after a brief introduction to two dimensional millimeter waves and terahertz imaging we establish the principles of tomography for Terahertz Computed tomography (CT), tomosynthesis (TS), synthetic aperture radar (SAR) and time-of-flight (TOF) terahertz tomography. For each technique, we present advantages, drawbacks and limitations for imaging the internal structure of an object.
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hal-00968839 , version 1 (01-04-2014)


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Jean Paul Guillet, Benoît Recur, Louis Frederique, Bruno Bousquet, Lionel Canioni, et al.. Review of Terahertz Tomography Techniques. Journal of Infrared, Millimeter and Terahertz Waves, 2014, 35 (4), pp.382-411. ⟨10.1007/s10762-014-0057-0⟩. ⟨hal-00968839⟩


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