Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/74102
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Type: Journal article
Title: Terahertz fingerprinting in presence of quasi-ballistic scattering
Author: Kaushik, M.
Ng, B.
Fischer, B.
Abbott, D.
Citation: Applied Physics Letters, 2012; 101(6):061108-1-061108-5
Publisher: Amer Inst Physics
Issue Date: 2012
ISSN: 0003-6951
1077-3118
Statement of
Responsibility: 
Mayank Kaushik, Brian W.-H. Ng, Bernd M. Fischer, and Derek Abbott
Abstract: Recent years have seen significant advances in material diagnostics and analysis using terahertz (THz) time domain spectroscopy (TDS) and imaging. Despite its widespread application, the interaction between THz radiation and materials with random structure is not yet fully studied. Separation of absorption and scattering is required to extract the true absorption spectra, thus enabling direct comparison with pure samples in a spectral data base for automated recognition. Here, we present a discrete wavelet transform based iterative reconstruction technique that reduces the scattering contribution in THz-TDS measurements, in composites with absorbing constituents that exhibit sharp absorption features.
Keywords: absorption
iterative methods
terahertz wave imaging
terahertz wave spectra
terahertz waves
wavelet transforms
Rights: © 2012 Crown
DOI: 10.1063/1.4745182
Published version: http://dx.doi.org/10.1063/1.4745182
Appears in Collections:Aurora harvest
Electrical and Electronic Engineering publications

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