Simultaneous Vibrational and Pure Rotational Coherent Anti-Stokes Raman Spectroscopy for Temperature and Multispecies Concentration Measurements Demonstrated in Sooting Flames
Applied Optics, Vol. 41, Issue 3, pp. 564-572 (2002)
http://dx.doi.org/10.1364/AO.41.000564
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Abstract
The potential of measuring temperature and multiple species concentrations (N2, O2, CO) by use of combined vibrational coherent anti-Stokes Raman spectroscopy (CARS) and pure rotational CARS has been investigated. This was achieved with only one Nd:YAG laser and one dye laser together with a single spectrograph and CCD camera. From measurements in premixed sooting C2H4-air flames it was possible to evaluate temperatures from both vibrational CARS and rotational CARS spectra, O2 concentration from the rotational CARS spectra, and CO concentration from the vibrational CARS spectra. Quantitative results from premixed sooting C2H4–air flames are presented, and the uncertainties in the results as well as the possibility of extending the combined CARS technique for probing of additional species are discussed.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(190.1900) Nonlinear optics : Diagnostic applications of nonlinear optics
(280.1740) Remote sensing and sensors : Combustion diagnostics
(300.6320) Spectroscopy : Spectroscopy, high-resolution
Citation
Christian Brackmann, Joakim Bood, Per-Erik Bengtsson, Thomas Seeger, Martin Schenk, and Alfred Leipertz, "Simultaneous Vibrational and Pure Rotational Coherent Anti-Stokes Raman Spectroscopy for Temperature and Multispecies Concentration Measurements Demonstrated in Sooting Flames," Appl. Opt. 41, 564-572 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-3-564
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