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Dual-pump dual-broadband coherent anti-Stokes Raman scattering in reacting flows
Optics Letters (2004)
  • Sukesh Roy
  • Terrence R Meyer
  • Robert P. Lucht, Purdue University
  • Mikael Afzelius
  • Per-Erik Bengtsson
  • James R. Gord, Air Force Research Laboratory
Abstract

A dual-pump, dual-broadband coherent anti-Stokes Raman scattering system for simultaneous measurements of temperature and concentrations of N2, O2, and CO2 in reacting f lows is demonstrated. In this system pure rotational transitions of N2 O2 and rovibrational transitions of N2 CO2 are probed simultaneously with two narrowband pump beams, a broadband pump beam, and a broadband Stokes beam. The main advantage of this technique is that it permits accurate temperature measurements at both low and high temperatures as well as concentration measurements of three molecules.

Keywords
  • anti-stokes Raman scattering,
  • CCD cameras,
  • mole fractions,
  • polarizers,
  • carbon dioxide,
  • combustion,
  • dye lasers,
  • electron energy levels,
  • laser beams,
  • nitrogen,
  • polarization,
  • probability density function
Publication Date
August, 2004
Publisher Statement
This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-29-16-1843. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Citation Information
Sukesh Roy, Terrence R Meyer, Robert P. Lucht, Mikael Afzelius, et al.. "Dual-pump dual-broadband coherent anti-Stokes Raman scattering in reacting flows" Optics Letters Vol. 29 Iss. 16 (2004)
Available at: http://works.bepress.com/terrence_meyer/31/