Polarization spectroscopy applied to C2 detection in a flame

Kaj Nyholm; M. Kaivola; C. G. Aminoff

doi:10.1007/BF01082066

Polarization spectroscopy applied to C₂ detection in a flame

Kaj Nyholm^*, M. Kaivola, C. G. Aminoff

^*Corresponding author for this work

Not published at VTT

Helsinki University of Technology

Research output: Contribution to journal › Article › Scientific › peer-review

33 Citations (Scopus)

Abstract

The detection of C₂ radicals in a premixed acetylene-oxygen flame by using polarization spectroscopy is reported. The signal was recorded in the Swan system, d³II_g-a₃II_u (0, 0), using a pulsed dye laser. The spectrum shows a very good signal-to-noise ratio with clearly resolved rotational structures of the P and R triplets. The dependence of the signal on the pump-beam polarization was also studied. The spatial distribution of the signal from C₂ radicals in the flame was measured as a demonstration of the use of polarization spectroscopy in combustion diagnostics.

Original language	English
Pages (from-to)	5-10
Journal	Applied Physics B: Lasers and Optics
Volume	60
Issue number	1
DOIs	https://doi.org/10.1007/BF01082066
Publication status	Published - 1 Jan 1995
MoE publication type	A1 Journal article-refereed

Keywords

33.20
42.65

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10.1007/BF01082066

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N2 - The detection of C2 radicals in a premixed acetylene-oxygen flame by using polarization spectroscopy is reported. The signal was recorded in the Swan system, d3IIg-a3IIu (0, 0), using a pulsed dye laser. The spectrum shows a very good signal-to-noise ratio with clearly resolved rotational structures of the P and R triplets. The dependence of the signal on the pump-beam polarization was also studied. The spatial distribution of the signal from C2 radicals in the flame was measured as a demonstration of the use of polarization spectroscopy in combustion diagnostics.

AB - The detection of C2 radicals in a premixed acetylene-oxygen flame by using polarization spectroscopy is reported. The signal was recorded in the Swan system, d3IIg-a3IIu (0, 0), using a pulsed dye laser. The spectrum shows a very good signal-to-noise ratio with clearly resolved rotational structures of the P and R triplets. The dependence of the signal on the pump-beam polarization was also studied. The spatial distribution of the signal from C2 radicals in the flame was measured as a demonstration of the use of polarization spectroscopy in combustion diagnostics.

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Polarization spectroscopy applied to C₂ detection in a flame

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