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Material parameter estimation and imaging with terahertz time-domain spectroscopy

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dc.contributor.advisor Baraniuk, Richard G.
dc.creator Dorney, Timothy Dominic
dc.date.accessioned 2009-06-04T08:09:47Z
dc.date.available 2009-06-04T08:09:47Z
dc.date.issued 2002
dc.identifier.uri http://hdl.handle.net/1911/18074
dc.description.abstract Terahertz time-domain spectroscopy (THz-TDS) offers a range of unique imaging modalities due to the broad bandwidth, sub-picosecond duration, and phase-sensitive detection of the THz pulses. Previous research in the THz field primarily focused on improving the optoelectronics and on qualitative investigation of suitable applications. In this thesis, we use a quantitative approach to explore and extend the boundaries of the system. First, the possibility exists to combine spectroscopic characterization and/or identification with imaging because the THz radiation is broadband in nature. We describe a robust algorithm for extracting the optical constants and thickness, simultaneously and independently, from a sample. The technique extracts material parameters for both high and low index materials. Second, a fiber-coupled THz system provides an unparalleled opportunity to simulate seismic data collection. We demonstrate the homology between ultra-wideband seismic and THz imaging using multistatic reflective data acquisition. These results broaden the capabilities of THz imaging by borrowing from a mature imaging community. We investigate the resolution limits and show results from both simple and complex layered targets.
dc.format.extent 96 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subject Engineering, Electronics and Electrical
Physics, Optics
dc.title Material parameter estimation and imaging with terahertz time-domain spectroscopy
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Physics
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Doctoral
thesis.degree.name Doctor of Philosophy
dc.identifier.citation Dorney, Timothy Dominic. (2002) "Material parameter estimation and imaging with terahertz time-domain spectroscopy." Doctoral Thesis, Rice University. http://hdl.handle.net/1911/18074.

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