Increased sensitivity in T-ray liquid spectroscopy using rapid sample modulation

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dc.contributor.authorMickan, S.
dc.contributor.authorMunch, J.
dc.contributor.authorZhang, X.
dc.contributor.authorAbbott, D.
dc.contributor.conferenceTerahertz and Gigahertz Electronics and Photonics III (2004 : San Jose, California)
dc.contributor.editorHwu, R.J.
dc.date.issued2004
dc.description© 2004 COPYRIGHT SPIE--The International Society for Optical Engineering
dc.description.abstractPulsed THz (T-ray) spectroscopy is sensitive, non-invasive tool for studying materials from physics to biology, but transmission measurements of liquid samples, especially water, have been limited by noise. This paper shows that the accuracy of T-ray material parameter measurements of liquid samples can be greatly increased, especially for highly-absorbing liquids, by using a rapid modulation of the liquid in the T-ray beam path, coupled with a novel implementation of mean and amplitude detection to T-ray spectroscopy. The experiments are supported by calculations quantifying the sources of uncertainty. Liquid transmission T-ray studies are valuable for understanding solvation dynamics of salts, exploring long-range structure in mixtures and probing biomolecules in suspension.
dc.description.statementofresponsibilitySamuel P. Mickan, Jesper Munch, Xi-Cheng Zhang, and Derek Abbott
dc.identifier.citationTerahertz and gigahertz electronics and photonics III, 25-26 January 2004 / R. Jennifer Hwu (ed.): pp. 71-85
dc.identifier.doi10.1117/12.533682
dc.identifier.isbn0819452793
dc.identifier.issn0277-786X
dc.identifier.orcidAbbott, D. [0000-0002-0945-2674]
dc.identifier.urihttp://hdl.handle.net/2440/28584
dc.language.isoen
dc.publisherSPIE
dc.publisher.placeBellingham, Wa, USA
dc.relation.ispartofseriesProceedings of SPIE--the International Society for Optical Engineering ; 5354.
dc.source.urihttps://doi.org/10.1117/12.533682
dc.titleIncreased sensitivity in T-ray liquid spectroscopy using rapid sample modulation
dc.typeConference paper
pubs.publication-statusPublished

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