Spectroscopic studies of the NCl3 + H reaction sequence as a candidate laser system

A.J. Ray Hunter; William J. Kessler; Seonkyung Lee; Steven J. Davis

doi:10.1117/12.537743

11 May 2004 Spectroscopic studies of the NCl₃ + H reaction sequence as a candidate laser system

A.J. Ray Hunter, William J. Kessler, Seonkyung Lee, Steven J. Davis

Proceedings Volume 5334, Gas and Chemical Lasers, and Applications III; (2004) https://doi.org/10.1117/12.537743
Event: Lasers and Applications in Science and Engineering, 2004, San Jose, Ca, United States

Abstract

In this paper we present results from a spectroscopic and kinetic study of the reaction sequence of NCl₃ + H that produces NCl(a¹Δ). Using sensitive optical emission diagnostics, we have observed both NCl(a) and (b) produced by this reaction. Upon addition of HI to the flow, the reaction of H + HI produced iodine atoms that were pumped to the excited I(²P_1/2) state, and we observed strong emission from the I atom ²P_1/2 → ²P_3/2 transition at 1.315 μm. We also used a sensitive diode laser spectrometer to probe the I atom transition and observed transfer of population from ground state (²P_3/2) to the excited state (²P_1/2) with a concomitant reduction in the measured absorption. We interpret this observation as an approach to optical transparency.

Citation Download Citation

A.J. Ray Hunter, William J. Kessler, Seonkyung Lee, and Steven J. Davis "Spectroscopic studies of the NCl₃ + H reaction sequence as a candidate laser system", Proc. SPIE 5334, Gas and Chemical Lasers, and Applications III, (11 May 2004); https://doi.org/10.1117/12.537743

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