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Proceedings Paper

Terahertz dielectric measurements of household powders
Author(s): Usman A. Khan; Mohammed N. Afsar
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Paper Abstract

The dielectric properties of common household powders from 0.6 to 1.2 THz are presented in this paper. Terahertz Dispersive Fourier Transform Spectroscopy was used to yield the dielectric properties of powders as a continuous function of frequency. Tests were conducted using a polarized interferometer and two cryogenically-cooled high frequency detectors. Dielectric spectroscopy was utilized to provide high-resolution and precise information on the dielectric spectra of powders including the powder's unique resonance signature. This signature can be employed to detect the presence of a hoax or harmful powder within a baggage or mail package.

Paper Details

Date Published: 26 September 2007
PDF: 8 pages
Proc. SPIE 6772, Terahertz Physics, Devices, and Systems II, 67720H (26 September 2007); doi: 10.1117/12.738181
Show Author Affiliations
Usman A. Khan, Tufts Univ. (United States)
Mohammed N. Afsar, Tufts Univ. (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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