Detection of C2 and temperature measurement in a flame by using degenerate four-wave mixing in a forward geometry

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

doi:10.1016/0030-4018(94)90356-5

Detection of C₂ and temperature measurement in a flame by using degenerate four-wave mixing in a forward geometry

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

29 Citations (Scopus)

Abstract

We report on the use of degenerate four-wave mixing in a forward beam configuration for the detection of C₂ in a premixed acetylene-oxygen flame. The Swan system, d³Π_g - a³Π_u (0,0), near the P branch bandhead of the C₂ molecules was measured. The spectrum shows clearly resolved rotational structures of the P and R triplets. For diagnostic applications such a spectrum gives information on the molecular concentration as well as on the temperature in the probed volume. The rotational temperature of the C₂ radical in the measurement point was determined from the experimental data.

Original language	English
Pages (from-to)	406-410
Journal	Optics Communications
Volume	107
Issue number	5-6
DOIs	https://doi.org/10.1016/0030-4018(94)90356-5
Publication status	Published - 1 May 1994
MoE publication type	A1 Journal article-refereed

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abstract = "We report on the use of degenerate four-wave mixing in a forward beam configuration for the detection of C2 in a premixed acetylene-oxygen flame. The Swan system, d3Πg - a3Πu (0,0), near the P branch bandhead of the C2 molecules was measured. The spectrum shows clearly resolved rotational structures of the P and R triplets. For diagnostic applications such a spectrum gives information on the molecular concentration as well as on the temperature in the probed volume. The rotational temperature of the C2 radical in the measurement point was determined from the experimental data.",

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AU - Nyholm, Kaj

AU - Kaivola, M.

AU - Aminoff, C. G.

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Y1 - 1994/5/1

N2 - We report on the use of degenerate four-wave mixing in a forward beam configuration for the detection of C2 in a premixed acetylene-oxygen flame. The Swan system, d3Πg - a3Πu (0,0), near the P branch bandhead of the C2 molecules was measured. The spectrum shows clearly resolved rotational structures of the P and R triplets. For diagnostic applications such a spectrum gives information on the molecular concentration as well as on the temperature in the probed volume. The rotational temperature of the C2 radical in the measurement point was determined from the experimental data.

AB - We report on the use of degenerate four-wave mixing in a forward beam configuration for the detection of C2 in a premixed acetylene-oxygen flame. The Swan system, d3Πg - a3Πu (0,0), near the P branch bandhead of the C2 molecules was measured. The spectrum shows clearly resolved rotational structures of the P and R triplets. For diagnostic applications such a spectrum gives information on the molecular concentration as well as on the temperature in the probed volume. The rotational temperature of the C2 radical in the measurement point was determined from the experimental data.

UR - https://www.scopus.com/pages/publications/0028436613

U2 - 10.1016/0030-4018(94)90356-5

DO - 10.1016/0030-4018(94)90356-5

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EP - 410

JO - Optics Communications

JF - Optics Communications

IS - 5-6

ER -

Detection of C₂ and temperature measurement in a flame by using degenerate four-wave mixing in a forward geometry

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