Pulsed THz TDS of objects covered by disordered structure

V. A. Trofimov; I. G. Zakharova; D. Yu. Zagursky; Svetlana A. Varentsova

doi:10.1117/12.2225168

3 May 2016 Pulsed THz TDS of objects covered by disordered structure

V. A. Trofimov, I. G. Zakharova, D. Yu. Zagursky, Svetlana A. Varentsova

Proceedings Volume 9823, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXI; 98230F (2016) https://doi.org/10.1117/12.2225168
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

Using both computer simulation and physical experiment, we demonstrate principal limitations of standard Time Domain Spectroscopy based on a broadband THz pulse for the detection and identification of substance placed inside the disordered structure. The interaction of a THz pulse with a disordered layered structure was simulated in order to show the influence of the disordered layers on the spectral characteristics of the transmitted and reflected signals. Spectral characteristics of these signals were analyzed in a direct comparison with the incident pulse spectrum. We showed that a disordered structure disturbs the reflected pulse spectrum dramatically. To avoid this, we used the integral correlation criteria in real experiment. Computer simulation results were confirmed by physical experiment. We provided the experiments with paper bag, and ordinary sheets of paper, and napkins.

Citation Download Citation

V. A. Trofimov, I. G. Zakharova, D. Yu. Zagursky, and Svetlana A. Varentsova "Pulsed THz TDS of objects covered by disordered structure", Proc. SPIE 9823, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXI, 98230F (3 May 2016); https://doi.org/10.1117/12.2225168

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