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Impacts of terahertz scattering on the reflection spectrum for explosive detection

  • Zhen Zhou*
  • , Antao Chen
  • , John Zhang
  • , Lisa M. Zurk
  • , Brian Orlowski
  • , Eric Thorsos
  • , Dale Winebrenner
  • , Larry R. Dalton
  • *Corresponding author for this work
  • Applied Physics Laboratory
  • Portland State University
  • University of Washington

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationTerahertz Physics, Devices, and Systems II
DOIs
StatePublished - 2007
Externally publishedYes
EventTerahertz Physics, Devices, and Systems II - Boston, MA, United States
Duration: 11 Sep 200712 Sep 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6772
ISSN (Print)0277-786X

Conference

ConferenceTerahertz Physics, Devices, and Systems II
Country/TerritoryUnited States
CityBoston, MA
Period11/09/0712/09/07

Keywords

  • Reflection spectrum
  • Scattering
  • Terahertz

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