25 February 2014 Oxygen atom density and thermal energy control in an electric-oxygen iodine laser
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Experiments[1] with Electric Oxygen-Iodine Laser (ElectricOIL) heat exchanger technology have demonstrated improved control of oxygen atom density and thermal energy, with minimal quenching of O2(a1Δ), and increasing small signal gain from 0.26% cm-1 to 0.30% cm-1. Heat exchanger technological improvements were achieved through both experimental and modeling studies, including estimation of O2(a1Δ) surface quenching coefficients for select ElectricOIL materials downstream of a radio-frequency discharge-driven singlet oxygen generator. Estimation of O2(a1Δ) quenching coefficients is differentiated from previous studies by inclusion of oxygen atoms, historically scrubbed using HgO[2-4] or AgO[5]. High-fidelity, time-dependent and steady-state simulations are presented using the new BLAZE-VI multi-physics simulation suite[6] and compared to data.
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G. F. Benavides, A. D. Palla, J. W. Zimmerman, B. S. Woodard, D. L. Carroll, W. C. Solomon, "Oxygen atom density and thermal energy control in an electric-oxygen iodine laser", Proc. SPIE 8962, High Energy/Average Power Lasers and Intense Beam Applications VII, 89620G (25 February 2014); doi: 10.1117/12.2044801; https://doi.org/10.1117/12.2044801

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