Observation of fast O2(a1Δ) quenching in the O/O2/O3 system

Valeriy N. Azyazov; H. M. Kabir; Michael C. Heaven

doi:10.1117/12.717645

14 February 2007 Observation of fast O₂(a¹&Dgr;) quenching in the O/O₂/O₃ system

Valeriy N. Azyazov, H. M. Kabir, Michael C. Heaven

Proceedings Volume 6454, High Energy/Average Power Lasers and Intense Beam Applications; 64540K (2007) https://doi.org/10.1117/12.717645
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

Abstract

In the present study we have observed rapid quenching of O₂(a¹&Dgr;) in O(³P)/O₂/O₃ mixtures. Oxygen atoms and singlet oxygen molecules were produced by the 248 nm laser photolysis of ozone. The kinetics of O₂(a¹&Dgr;) quenching were followed by observing the 1268 nm fluorescence of the O₂ a¹&Dgr;-X³&Sgr; transition. The temporal profiles of oxygen atoms O(³P) were monitored by means of the O+NO chemiluminescent reaction. The mechanisms of fast O₂(a¹&Dgr;) quenching in the presence of O atoms are discussed.

Citation Download Citation

Valeriy N. Azyazov, H. M. Kabir, and Michael C. Heaven "Observation of fast O₂(a¹&Dgr;) quenching in the O/O₂/O₃ system", Proc. SPIE 6454, High Energy/Average Power Lasers and Intense Beam Applications, 64540K (14 February 2007); https://doi.org/10.1117/12.717645

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