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

Research output: Contribution to journalArticleScientificpeer-review

27 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, 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.

Original languageEnglish
Pages (from-to)406-410
JournalOptics Communications
Volume107
Issue number5-6
DOIs
Publication statusPublished - 1 May 1994
MoE publication typeA1 Journal article-refereed

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