Femtosecond laser induced breakdown spectroscopy of air-methane mixtures

被引：27

作者：

Kotzagianni, M. ^{[1
,2
]}

Couris, S. ^{[1
,2
,3
]}

机构：

[1] Univ Patras, Dept Phys, Patras 26504, Greece

[2] Fdn Res & Technol Hellas FORTH, Inst Chem Engn Sci ICE HT, Patras 26504, Greece

[3] Univ Bourgogne, Lab Interdisciplinaire Carnot Bourgogne, F-21078 Dijon, France

来源：

CHEMICAL PHYSICS LETTERS | 2013年 / 561卷

关键词：

OPTICAL-EMISSION; INDUCED SPARK; GRAPHITE; ABLATION; NITROGEN; PLASMA; RATIO; CN; PLUME; FLAMES;

D O I：

10.1016/j.cplett.2013.01.058

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Femtosecond laser pulses are used in order to induce dielectric breakdown in gaseous mixtures, namely in some reactive air-methane mixtures. The light emitted from the laser induced plasma was analyzed while the main emission features are identified and assigned. From the analysis of the emission spectra, a linear relationship was found to hold between the intensity of some spectral features and methane content. Finally, the use of femtosecond laser induced breakdown as a tool for the in situ determination of the composition of gaseous mixtures (e. g., equivalence ratio) is also discussed. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：36 / 41

页数：6

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