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Proceedings Paper

Detailed investigation of OH-LIF spectrum in methane/air flame
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Paper Abstract

Laser induced fluorescence has the potential to get two dimension temperature and concentration map in combustion. For understanding the fluorescence technology exactly, A detailed experiment has been developed to investigate the fluorescence spectrum. The time variation of spectrum is first presented by changing the pump-probe time delay. And this is followed by demonstrate the response of fluorescence to laser excitation. As showed by the experiment result, The intensity ratio of the (1, 1) and (0, 0) fluorescence band was varied both with time and the exiting laser line, we attribute this phenomenon to the difference rotational distribution of excited OH. And the new rule, which exciting a specific rotational level in the A2Σ(υ ' =1) excited state from two difference rotational levels in the X 2Π(υ " = 0) ground state, was experimental confirmed, and this will be a foundation to the future two line laser induced fluorescence thermometry.

Paper Details

Date Published: 16 May 2013
PDF: 5 pages
Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 87961C (16 May 2013); doi: 10.1117/12.2011127
Show Author Affiliations
Guohua Li, Northwest Institute of Nuclear Technology (China)
Jingfeng Ye, Northwest Institute of Nuclear Technology (China)
Zhenrong Zhang, Northwest Institute of Nuclear Technology (China)
Zhiyun Hu, Northwest Institute of Nuclear Technology (China)


Published in SPIE Proceedings Vol. 8796:
2nd International Symposium on Laser Interaction with Matter (LIMIS 2012)
Stefan Kaierle; Jingru Liu; Jianlin Cao, Editor(s)

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