Swithenbank, M orcid.org/0000-0002-6146-1818, Burnett, AD orcid.org/0000-0003-2175-1893, Russell, C orcid.org/0000-0002-7322-8255 et al. (5 more authors) (2017) On-chip Terahertz-Frequency Measurements of Liquids. Analytical Chemistry, 89 (15). pp. 7981-7987. ISSN 0003-2700
Abstract
Terahertz-frequency-range measurements can offer potential insight into the picosecond dynamics, and therefore function, of many chemical systems. There is a need to develop technologies capable of performing such measurements in aqueous and polar environments, particularly when it is necessary to maintain the full functionality of biological samples. In this study, we present a proof-of-concept technology comprising an on-chip planar Goubau line, integrated with a microfluidic channel, which is capable of low-loss, terahertz-frequency-range spectroscopic measurements of liquids. We also introduce a mathematical model that accounts for changes in the electric field distribution around the waveguide, allowing accurate, frequency-dependent liquid parameters to be extracted. We demonstrate the sensitivity of this technique by measuring a homologous alcohol series across the 0.1-0.8 THz frequency range.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Physical Chemistry (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/I026657/1 Royal Society WM110032 Royal Society WM150029 Defense Threat Reduction Agency HDTRA-1-14-C-0013 Wellcome Trust 201058/Z/16/Z EPSRC (Engineering and Physical Sciences Research Council) EP/P007449/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 18 Jul 2017 13:55 |
Last Modified: | 13 Dec 2024 13:54 |
Status: | Published |
Publisher: | American Chemical Society |
Identification Number: | 10.1021/acs.analchem.7b01235 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:119214 |