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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Dernière modification le : vendredi 10 juillet 2015 - 01:05:48
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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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