Sulfur hexafluoride detection by Radar resonance enhanced multiphoton ionization

Céline Stein, Arthur Dogariu, Alexander Glaser, Richard B. Miles

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, we have demonstrated the stand-off detection of sulfur hexafluoride by the Radar resonance multi-photon ionization process. In order to obtain a well defined spectral signature, the sulfur hexafluoride molecules are first dissociated by a focused pulsed Nd:YAG laser to sulfur difluoride molecules, which are then ionized by a pulsed, frequency tunable, narrow linewidth laser emitting in the ultraviolet. At the wavelength 269.5 nm, a concentration of 10 % of sulfur hexafluoride has been detected and the spectral signature shows some overlap with a carbon dioxide resonant spectral line. At 322.45 nm, we achieve better spectral definition. Based on successes using a similar approach for trace nitric oxide detection, we expect to be able to extend this approach to the detection of trace levels of SF6 in the atmosphere for greenhouse gas monitoring.

Original languageEnglish (US)
Title of host publication42nd AIAA Plasmadynamics and Lasers Conference
StatePublished - Dec 1 2011
Event42nd AIAA Plasmadynamics and Lasers Conference 2011 - Honolulu, HI, United States
Duration: Jun 27 2011Jun 30 2011

Publication series

Name42nd AIAA Plasmadynamics and Lasers Conference

Other

Other42nd AIAA Plasmadynamics and Lasers Conference 2011
CountryUnited States
CityHonolulu, HI
Period6/27/116/30/11

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

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    Stein, C., Dogariu, A., Glaser, A., & Miles, R. B. (2011). Sulfur hexafluoride detection by Radar resonance enhanced multiphoton ionization. In 42nd AIAA Plasmadynamics and Lasers Conference (42nd AIAA Plasmadynamics and Lasers Conference).