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Proceedings Paper

Impacts of terahertz scattering on the reflection spectrum for explosive detection
Author(s): Zhen Zhou; Antao Chen; John X. Zhang; Lisa M. Zurk; Brian Orlowski; Eric I. Thorsos; Dale P. Winebrenner; Larry R. Dalton
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Paper Abstract

The effects of surface scattering on terahertz reflection spectrum for explosive detection are studied by measuring terahertz reflection pulses from sandpapers with different roughness coated with gold. The experimental results show that the amplitude decrease and pulse broadening of the detected signal caused by the surface scattering result in the width reduction of Gaussian distribution of the specular scattering coefficient spectrum. A simple analytical model is applied to the analysis of experimental results and good agreements are obtained.

Paper Details

Date Published: 26 September 2007
PDF: 7 pages
Proc. SPIE 6772, Terahertz Physics, Devices, and Systems II, 67720T (26 September 2007); doi: 10.1117/12.733305
Show Author Affiliations
Zhen Zhou, Univ. of Washington (United States)
Antao Chen, Univ. of Washington (United States)
John X. Zhang, Univ. of Washington (United States)
Lisa M. Zurk, Portland State Univ. (United States)
Brian Orlowski, Portland State Univ. (United States)
Eric I. Thorsos, Univ. of Washington (United States)
Dale P. Winebrenner, Univ. of Washington (United States)
Larry R. Dalton, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 6772:
Terahertz Physics, Devices, and Systems II
Mehdi Anwar; Anthony J. DeMaria; Michael S. Shur, Editor(s)

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