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Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/74102

Type: Journal article
Title: Terahertz fingerprinting in presence of quasi-ballistic scattering
Author: Kaushik, Mayank
Ng, Brian Wai-Him
Fischer, Bernd Michael
Abbott, Derek
Citation: Applied Physics Letters, 2012; 101(6):061108
Publisher: Amer Inst Physics
Issue Date: 2012
ISSN: 0003-6951
School/Discipline: School of Electrical and Electronic Engineering
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
RMID: 0020121817
DOI: 10.1063/1.4745182
Appears in Collections:Electrical and Electronic Engineering Publications
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