Nitrogen metastable (N2(A 3 Σu                         +)) in a cold argon atmospheric pressure plasma jet: Shielding and gas composition

Sylvain Iseni; Peter J. Bruggeman; Klaus Dieter Weltmann; Stephan Reuter

doi:10.1063/1.4948535

Nitrogen metastable (N₂(A ³ Σ_u ⁺)) in a cold argon atmospheric pressure plasma jet: Shielding and gas composition

Sylvain Iseni, Peter J. Bruggeman, Klaus Dieter Weltmann, Stephan Reuter

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

N₂(A ³ Σ_u ⁺ metastable species are detected and measured in a non-equilibrium atmospheric pressure plasma jet by laser induced fluorescence. A shielding device is used to change the ambient conditions additionally to the feeding gas composition. Varying the amount of N₂ and air admixed to the feeding gas as well as changing the shielding gas from N₂ to air reveals that the highest N₂(A ³ Σ_u ⁺ is achieved in the case of air admixtures in spite of the enhanced collisional quenching due to the presence of O₂. The reasons for these observations are discussed in detail.

Original language	English (US)
Article number	184101
Journal	Applied Physics Letters
Volume	108
Issue number	18
DOIs	https://doi.org/10.1063/1.4948535
State	Published - May 2 2016

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© 2016 Author(s).

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10.1063/1.4948535

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abstract = "N2(A 3 Σu + metastable species are detected and measured in a non-equilibrium atmospheric pressure plasma jet by laser induced fluorescence. A shielding device is used to change the ambient conditions additionally to the feeding gas composition. Varying the amount of N2 and air admixed to the feeding gas as well as changing the shielding gas from N2 to air reveals that the highest N2(A 3 Σu + is achieved in the case of air admixtures in spite of the enhanced collisional quenching due to the presence of O2. The reasons for these observations are discussed in detail.",

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AU - Reuter, Stephan

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AB - N2(A 3 Σu + metastable species are detected and measured in a non-equilibrium atmospheric pressure plasma jet by laser induced fluorescence. A shielding device is used to change the ambient conditions additionally to the feeding gas composition. Varying the amount of N2 and air admixed to the feeding gas as well as changing the shielding gas from N2 to air reveals that the highest N2(A 3 Σu + is achieved in the case of air admixtures in spite of the enhanced collisional quenching due to the presence of O2. The reasons for these observations are discussed in detail.

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