Kinetics of oxygen discharges and I(2P1/2) excitation for EOIL

Wilson T. Rawlins; Seonkyung Lee; Steven J. Davis

doi:10.1117/12.707137

14 February 2007 Kinetics of oxygen discharges and I(²P_1/2) excitation for EOIL

Wilson T. Rawlins, Seonkyung Lee, Steven J. Davis

Proceedings Volume 6454, High Energy/Average Power Lasers and Intense Beam Applications; 64540H (2007) https://doi.org/10.1117/12.707137
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

Abstract

The electric oxygen-iodine laser (EOIL) concept uses an electric discharge plasma to generate an effluent flow containing singlet oxygen, O₂(a¹&Dgr;), and atomic oxygen, O, which react with I₂ to excite the atomic iodine laser transition at 1.315 &mgr;m. This chemically rich system has unique characteristics, whose understanding requires systematic chemical kinetics investigation under carefully selected conditions to isolate the key reaction mechanisms. We describe a series of reacting flow measurements on the reactions of discharge-excited active-O₂ with I₂, using a comprehensive suite of optical emission and absorption diagnostics to monitor the absolute concentrations of O₂(a¹&Dgr;), O₂(b¹summation), O(³P), O₃, I₂, I(²P_3/2), I(²P_1/2), small-signal gain, and temperature. These multispecies measurements help to constrain the kinetics model of the system, and quantify the chemical loss mechanisms for I(²P_1/2).

Citation Download Citation

Wilson T. Rawlins, Seonkyung Lee, and Steven J. Davis "Kinetics of oxygen discharges and I(²P_1/2) excitation for EOIL", Proc. SPIE 6454, High Energy/Average Power Lasers and Intense Beam Applications, 64540H (14 February 2007); https://doi.org/10.1117/12.707137

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