Re-examination of the role of O2(b) in the I2 dissociation mechanism

Michael C. Heaven; Jiande Han; Steven J. Davis; Seonkyung Lee

doi:10.1117/12.537746

11 May 2004 Re-examination of the role of O₂(b) in the I₂ dissociation mechanism

Michael C. Heaven, Jiande Han, Steven J. Davis, Seonkyung Lee

Proceedings Volume 5334, Gas and Chemical Lasers, and Applications III; (2004) https://doi.org/10.1117/12.537746
Event: Lasers and Applications in Science and Engineering, 2004, San Jose, Ca, United States

Abstract

Dissociation of I₂ by O₂(b) is a process that is potentially important in iodine laser systems that are driven by discharge and chemical singlet oxygen generators. Recent work on the quenching of singlet oxygen by I2 suggests that the accepted upper bound of <0.2 for the branching fraction for O₂(b) + I₂ → O₂(X) + 2I may be too low. New measurements of the branching fraction have been carried out using transient diode laser absorption technique to monitor I atom formation. The results indicate that the branching fraction may be as high as 0.6.

Citation Download Citation

Michael C. Heaven, Jiande Han, Steven J. Davis, and Seonkyung Lee "Re-examination of the role of O₂(b) in the I₂ dissociation mechanism", Proc. SPIE 5334, Gas and Chemical Lasers, and Applications III, (11 May 2004); https://doi.org/10.1117/12.537746

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