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Terahertz radiation for tomographic inspection

Abstract : Three-dimensional (3-D) terahertz computed tomography has already been performed with three different reconstruction methods (standard back-projection algorithm and two iterative analyses) to reconstruct 3-D objects. A Gaussian beam model is developed according to the physical properties of terahertz waves such as the energy distribution within the propagation path. This model is included as a new convolution filter into the tomographic reconstruction methods in order to analyze the impact of a such effect and then to enhance quality and accuracy of the resulting images. We demonstrate the improvements of the optimized reconstructions for applied 3-D terahertz tomography.
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Contributor : Benoît Recur <>
Submitted on : Tuesday, May 22, 2012 - 10:19:51 AM
Last modification on : Monday, October 12, 2020 - 8:22:03 PM
Long-term archiving on: : Thursday, August 23, 2012 - 2:22:49 AM


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Benoît Recur, Jean Paul Guillet, Lena Bassel, Carole Fragnol, Inka Manek-Hönninger, et al.. Terahertz radiation for tomographic inspection. Optical Engineering, SPIE, 2012, 51 (9), pp.091609-1 -- 091609-7. ⟨10.1117/1.OE.51.9.091609⟩. ⟨hal-00699947⟩



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