Diagnostics and modeling of a pulsed microwave-excited discharge in oxygen

Margarita G. Baeva; X. Luo; Juergen Uhlenbusch

doi:10.1117/12.347624

7 May 1999 Diagnostics and modeling of a pulsed microwave-excited discharge in oxygen

Margarita G. Baeva, X. Luo, Juergen Uhlenbusch

Proceedings Volume 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications; (1999) https://doi.org/10.1117/12.347624
Event: 10th International School on Quantum Electronics: Lasers: Physics and Applications, 1998, Varna, Bulgaria

Abstract

Investigations on a pulsed O₂ plasma under low pressure (1 - 10) mbar have been carried out. Microwave pulses (2.45 GHz) with a duration of (50 - 200) microsecond(s) and a repetition rate of (10 - 500) Hz are typical for the experiments. The electron density has been determined by means of an HCN laser interferometer. Detection of negative ions O^- has been performed using a photodetachment technique with a Nd:YAG laser. A kinetic model predicting the temporal behavior of the densities of oxygen atoms and molecules, metastable singlets O₂(a¹(Delta) , b¹(Sigma) ), negative ions O^-, positive ions O⁺₂, ozone, and the electron density has been developed. The experimental and theoretical data are fond to agree well.

Citation Download Citation

Margarita G. Baeva, X. Luo, and Juergen Uhlenbusch "Diagnostics and modeling of a pulsed microwave-excited discharge in oxygen", Proc. SPIE 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications, (7 May 1999); https://doi.org/10.1117/12.347624

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