Detection of OH in flames by using polarization spectroscopy

Detection of OH in flames by using polarization spectroscopy

The potentials of polarization spectroscopy in combustion studies are reported. This well-established technique of nonlinear laser spectroscopy is applied to the detection of OH molecules in a premixed acetylene-oxygen and a propane-air flame. The polarization spectrum is recorded in the A (2)Sigma-...

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Veröffentlicht in:Applied Optics 1993-02, Vol.32 (6), p.919-924
Hauptverfasser: NYHOLM, K, MAIER, R, AMINOFF, C. G, KAIVOLA, M
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Combustion. Flame
Exact sciences and technology
General and physical chemistry
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Zusammenfassung:The potentials of polarization spectroscopy in combustion studies are reported. This well-established technique of nonlinear laser spectroscopy is applied to the detection of OH molecules in a premixed acetylene-oxygen and a propane-air flame. The polarization spectrum is recorded in the A (2)Sigma-X(2)Pi(0, 0) band. The spatial distribution of OH is measured in the flames. The saturation of the signal as a function of the laser pulse intensity is also investigated.
ISSN:0003-6935
1559-128X
1539-4522
DOI:10.1364/AO.32.000919