Material parameter estimation and imaging with terahertz time-domain spectroscopy

Files in this item

Files Size Format View
3047300.PDF 3.788Mb application/pdf Thumbnail

Show simple item record

Item Metadata

dc.contributor.advisor Baraniuk, Richard G.
dc.creator Dorney, Timothy Dominic 2009-06-04T08:09:47Z 2009-06-04T08:09:47Z 2002
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 Physics Natural Sciences Rice University Doctoral Doctor of Philosophy
dc.identifier.citation Dorney, Timothy Dominic. (2002) "Material parameter estimation and imaging with terahertz time-domain spectroscopy." Doctoral Thesis, Rice University.

This item appears in the following Collection(s)