Terahertz interferometric and synthetic aperture imaging

Alexander M. Sinyukov, Aparajita Bandyopadhyay, Amartya Sengupta, Robert Barat, Dale Gary, Zoi-Heleni Michalopoulou, David Zimdars, John Federici

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Experimental results of homodyne terahertz interferometric 1-D and 2-D imaging are presented. The reconstructed images of a point source are in a good agreement with theoretical predictions. The performance of an N element detector array is imitated by only one detector placed at N positions. Continuous waves at 0.25-0.3 THz are used to detect a metal object behind a barrier. 1-D images of a C-4 sample have been obtained at several terahertz frequencies. Focusing issues of 2-D imaging have been demonstrated. The terahertz interferometric imaging method can be used in defense and security applications to detect concealed weapons, explosives as well as chemical and biological agents.

Original languageEnglish (US)
Pages (from-to)431-443
Number of pages13
JournalInternational Journal of High Speed Electronics and Systems
Volume17
Issue number2
DOIs
StatePublished - Jun 2007

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Keywords

  • Image
  • Interferometric
  • Near-field
  • Terahertz

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