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Opt Lett. 2004 Aug 15;29(16):1843-5.

Dual-pump dual-broadband coherent anti-Stokes Raman scattering in reacting flows.

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  • 1Innovative Scientific Solutions, Inc., 2766 Indian Ripple Road, Dayton, Ohio 45440, USA.


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 flows 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.

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