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Title:High Speed, Ultrasensitive Trace Gas Sensing
Author(s):Long, David A.
Contributor(s):Hodges, Joseph; Plusquellic, David F.; Fleisher, Adam J.
Subject(s):Analytical, Combustion, Plasma
Abstract:I will describe a variety of cavity-enhanced spectroscopic techniques, including frequency-agile rapid scanning spectroscopy (FARS) and heterodyne-detected cavity ring-down spectroscopy (HD-CRDS), which we have recently developed for rapid, ultrasensitive absorption measurements. Scanning rates that are limited only by the cavity response time itself as well as noise-equivalent detection limits as low as $6\times10^{-14}$ cm$^{-1}$ Hz$^{-1/2}$ have been achieved. I will discuss the application of these techniques to current problems in atmospheric science including recent infrared measurements of analytes which are present at ultra-trace concentrations.
Issue Date:2014-06-16
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:Long, D.A.; Hodges, J.; Plusquellic, D.F.; Fleisher, A.J. HIGH SPEED, ULTRASENSITIVE TRACE GAS SENSING. Proceedings of the International Symposium on Molecular Spectroscopy, Urbana, IL, June 16-21, 2014. DOI: 10.15278/isms.2014.MJ02
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/50937
DOI:10.15278/isms.2014.MJ02
Rights Information:Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/
Date Available in IDEALS:2014-09-17
2015-04-14


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