THz imaging and sensing for security applications - Explosives, weapons and drugs

John Federici, Brian Schulkin, Feng Huang, Dale Gary, Robert Barat, Filipe Oliveira, David Zimdars

Research output: Contribution to journalReview articlepeer-review

1639 Scopus citations


Over the past 5 years, there has been a significant interest in employing terahertz (THz) technology, spectroscopy and imaging for security applications. There are three prime motivations for this interest: (a) THz radiation can detect concealed weapons since many non-metallic, non-polar materials are transparent to THz radiation; (b) target compounds such as explosives and illicit drugs have characteristic THz spectra that can be used to identify these compounds and (c) THz radiation poses no health risk for scanning of people. In this paper, stand-off interferometric imaging and sensing for the detection of explosives, weapons and drugs is emphasized. Future prospects of THz technology are discussed.

Original languageEnglish (US)
Pages (from-to)S266-S280
JournalSemiconductor Science and Technology
Issue number7
StatePublished - Jul 1 2005

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry


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