Application of LIF techniques to atmospheric pressure nonthermal plasma

Tetsuji Oda; Ryo Ono

doi:10.1117/12.459404

19 March 2002 Application of LIF techniques to atmospheric pressure nonthermal plasma

Tetsuji Oda, Ryo Ono

Proceedings Volume 4460, Selected Research Papers on Spectroscopy of Nonequilibrium Plasma at Elevated Pressures; (2002) https://doi.org/10.1117/12.459404
Event: Selected Research Papers on Spectroscopy of Nonequilibrium Plasma at Elevated Pressures, 2002, Moscow, Russian Federation

Abstract

As a diagnosis tool of the atmospheric pressure non-thermal plasma, some Laser-Induced Fluorescence (LIF) techniques are described. The observed radicals are OH and NO in the plasma region generated by the electric pulse discharge or DC corona. Time variations of 2 dimensional distribution of OH or NO were observed just after the pulse excitation. Precise OH or NO concentration changes with time were also recorded related with some contamination and other parameters. Ground-state OH density is maximum at 30 or 50 microseconds after the submicrosecond pulse discharge in arc mode but the OH density is largest just after the pulse discharge if the plasma is the non-thermal plasma. NO decomposition occurs just in the streamer, and decomposing area increases from that streamer area with time, if NO concentration is low.

Citation Download Citation

Tetsuji Oda and Ryo Ono "Application of LIF techniques to atmospheric pressure nonthermal plasma", Proc. SPIE 4460, Selected Research Papers on Spectroscopy of Nonequilibrium Plasma at Elevated Pressures, (19 March 2002); https://doi.org/10.1117/12.459404

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