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High Speed, Ultrasensitive Trace Gas Sensing
Long, David A.
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https://hdl.handle.net/2142/50937
Description
- Title
- High Speed, Ultrasensitive Trace Gas Sensing
- Author(s)
- Long, David A.
- Contributor(s)
- Hodges, Joseph
- Plusquellic, David F.
- Fleisher, Adam J.
- Issue Date
- 2014-06-16
- Keyword(s)
- Analytical, Combustion, Plasma
- Date of Ingest
- 2014-09-17T16:55:32Z
- 2015-04-14T18:39:27Z
- 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.
- Publisher
- International Symposium on Molecular Spectroscopy
- Type of Resource
- text
- Genre of Resource
- Conference Paper / Presentation
- Language
- English
- Permalink
- http://hdl.handle.net/2142/50937
- DOI
- https://doi.org/10.15278/isms.2014.MJ02
- Copyright and License Information
- Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/
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