Terahertz dielectric measurements of household powders

Usman A. Khan; Mohammed N. Afsar

doi:10.1117/12.738181

26 September 2007 Terahertz dielectric measurements of household powders

Usman A. Khan, Mohammed N. Afsar

Proceedings Volume 6772, Terahertz Physics, Devices, and Systems II; 67720H (2007) https://doi.org/10.1117/12.738181
Event: Optics East, 2007, Boston, MA, United States

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.

Citation Download Citation

Usman A. Khan and Mohammed N. Afsar "Terahertz dielectric measurements of household powders", Proc. SPIE 6772, Terahertz Physics, Devices, and Systems II, 67720H (26 September 2007); https://doi.org/10.1117/12.738181

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