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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 15 — May. 20, 1997
  • pp: 3500–3505

Simultaneous temperature and relative nitrogen-oxygen concentration measurements in air with pure rotational coherent anti-Stokes Raman scattering for temperatures to as high as 2050 K

Albert Thumann, Martin Schenk, Joachim Jonuscheit, Thomas Seeger, and Alfred Leipertz  »View Author Affiliations


Applied Optics, Vol. 36, Issue 15, pp. 3500-3505 (1997)
http://dx.doi.org/10.1364/AO.36.003500


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Abstract

The accuracy of temperature and simultaneous relative N2 –O2 concentration measurements of accumulated as well as of single-pulse rotational coherent anti-Stokes Raman spectra has been investigated in air in the temperature range from 300 to 2050 K. The experimental spectra were taken in a high-temperature oven at atmospheric pressure for a constant oxygen concentration of 20.9% (air). The evaluation procedure is based on the energy-corrected sudden-power scaling law. The agreement of the thermocouple readings with the mean values of the evaluated coherent anti-Stokes Raman spectroscopy temperatures is higher than 50 K and independent of the temperature. The evaluated oxygen concentration is found to be in the range from 20.0 to 21.7% and is also independent of the temperature.

© 1997 Optical Society of America

Citation
Albert Thumann, Martin Schenk, Joachim Jonuscheit, Thomas Seeger, and Alfred Leipertz, "Simultaneous temperature and relative nitrogen-oxygen concentration measurements in air with pure rotational coherent anti-Stokes Raman scattering for temperatures to as high as 2050 K," Appl. Opt. 36, 3500-3505 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-15-3500

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