Mechanism of laser induced fluorescence signal generation in InCl3-ethanol mixture flames

Bolang Fang; Zhiyun Hu; Zhenrong Zhang; Guohua Li; Jun Shao; Guobin Feng

doi:10.1117/12.2267888

12 May 2017 Mechanism of laser induced fluorescence signal generation in InCl₃-ethanol mixture flames

Bolang Fang, Zhiyun Hu, Zhenrong Zhang, Guohua Li, Jun Shao, Guobin Feng

Proceedings Volume 10173, Fourth International Symposium on Laser Interaction with Matter; 1017312 (2017) https://doi.org/10.1117/12.2267888
Event: 4th International Symposium on Laser Interaction with Matter, 2016, Chengdu, China

Abstract

Nonlinear regime Two-line Atomic Fluorescence (NTLAF) is a promising technique for two-dimensional thermometry. A key challenge is seeding of indium atoms into flame. This work aims at investigating the mechanism of Indium LIF signal generation in a fuel-rich InCl₃-ethanol premixed flame. Several types of images including natural emission of the flame itself, natural emission of CH, natural emission of OH, natural emission at 410 nm/451 nm of indium atom, and laser induced fluorescence at 410 nm/451 nm were obtained. The indium atom was generated in the flame front, and could survive in the post-flame zone for a while which is benefit for making NTLAF measurements. Further detail mechanism of fluorescence signals generation in InCl₃-ethanol solution burning was investigated. The conclusion which probable to be drew is that to gain high NTLAF signals, the size of liquid droplets should be well controlled, neither to be too large nor to be gasified.

Citation Download Citation

Bolang Fang, Zhiyun Hu, Zhenrong Zhang, Guohua Li, Jun Shao, and Guobin Feng "Mechanism of laser induced fluorescence signal generation in InCl₃-ethanol mixture flames", Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 1017312 (12 May 2017); https://doi.org/10.1117/12.2267888

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