Catalytically enhanced singlet oxygen for EOIL

S. Lee; W. T. Rawlins; S. J. Davis

doi:10.1117/12.815123

19 February 2009 Catalytically enhanced singlet oxygen for EOIL

S. Lee, W. T. Rawlins, S. J. Davis

Proceedings Volume 7196, High Energy/Average Power Lasers and Intense Beam Applications III; 719605 (2009) https://doi.org/10.1117/12.815123
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

Enhanced production of singlet oxygen, O₂(a¹Δ_g), was observed by reaction of O₂/He discharge effluents on an iodine oxide film surface in a microwave discharge flow reactor at 320 K. We observed a two-fold increase in the O₂(a) yields in excess of discharge-generated amounts for non-catalytic conditions. The iodine oxide surface appears to catalyze the heterogeneous reaction to form O₂(a) with high collision efficiency. Injection of molecular iodine into the catalytically enriched active-oxygen flow resulted in excitation of the I(²P_1/2) state approaching optical transparency at 1315 nm. Addition of NO₂ resulted in positive small-signal gain in the 320 K subsonic flow. The observed catalytic effect could significantly benefit the development of electrically driven oxygen-iodine laser systems.

Citation Download Citation

S. Lee, W. T. Rawlins, and S. J. Davis "Catalytically enhanced singlet oxygen for EOIL", Proc. SPIE 7196, High Energy/Average Power Lasers and Intense Beam Applications III, 719605 (19 February 2009); https://doi.org/10.1117/12.815123

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