Femtosecond laser filamentation for sensing combustion intermediates: A comparative study

被引：0

作者：

Li, He-Long ^{[1
]}

Wei, Xiang-Ye ^{[1
]}

Xu, Huai-Liang ^{[1
]}

Chin, See-Leang ^{[2
]}

Yamanouchi, Kaoru ^{[3
]}

Sun, Hong-Bo ^{[1
,4
]}

机构：

[1] State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China

[2] Department of Physics, Center for Optics, Photonics and Laser, Laval University, QC G1V 0A6, Canada

[3] Department of Chemistry, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

[4] College of Physics, Jilin University, Changchun 130012, China

来源：

Sensors and Actuators, B: Chemical | 2014年 / 203卷

基金：

中国国家自然科学基金; 日本学术振兴会; 高等学校博士学科点专项科研基金;

关键词：

Laser pulses - Emission spectroscopy - Fluorescence - Ethanol - Laser excitation - Femtosecond lasers;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We demonstrate experimental evidences that femtosecond filament-induced clean fingerprint fluorescence can indeed be employed to characterize the combustion intermediates in flames. By comparing the emission spectra obtained from an ethanol-air flame by femtosecond filament excitation, nanosecond laser-breakdown excitation, as well as without any laser excitation, it is found that the filament-induced fluorescence in the combustion flame mainly results from the interaction of femtosecond laser pulses with the combustion intermediates such as OH, CH, and C2 existing in the combustion, but not from the fragmentation of parent ethanol molecules. © 2014 Elsevier B.V.

引用

页码：887 / 890

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