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Type: Journal article
Title: Terahertz scattering by granular composite materials: An effective medium theory
Author: Kaushik, M.
Ng, B.
Fischer, B.
Abbott, D.
Citation: Applied Physics Letters, 2012; 100(1):011107-1-011107-3
Publisher: Amer Inst Physics
Issue Date: 2012
ISSN: 0003-6951
Statement of
Mayank Kaushik, Brian W.-H. Ng, Bernd M. Fischer, and Derek Abbott
Abstract: Terahertz (THz) spectroscopy and imaging have emerged as important tools for identification and classification of various substances, which exhibit absorption characteristics at distinct frequencies in the THz range. The spectral fingerprints can potentially be distorted or obscured by electromagnetic scattering caused by the granular nature of some substances. In this paper, we present THz time domain transmission measurements of granular polyethylene powders in order to investigate an effective medium theory that yields a parameterized model, which can be used to estimate the empirical measurements to good accuracy.
Rights: © 2012 Crown
RMID: 0020116009
DOI: 10.1063/1.3674289
Appears in Collections:Electrical and Electronic Engineering publications

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