Role of vibrationally excited O2(1delta) in COIL

Ivan O. Antonov; Valery N. Azyazov; Sergey Yu. Pichugin; Nikolay I. Ufimtsev

doi:10.1117/12.610975

23 March 2005 Role of vibrationally excited O₂(¹Δ) in COIL

Ivan O. Antonov, Valery N. Azyazov, Sergey Yu. Pichugin, Nikolay I. Ufimtsev

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.610975
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

The analysis of a luminescence spectra of oxygen molecules on O₂(b¹Σ_g,υ’)→O₂(X³Σ_g^-υ") transitions has shown, that vibrationally excited O₂(b¹Σ_g⁺) molecules up to υ=5 are generated in the active medium of chemical oxygen-iodine laser (COIL). Comparison of experimental and calculated results has shown that 4.5 vibrational quanta of oxygen are formed in the active medium of COIL under the deactivation of one singlet oxygen molecule. Dependencies of the threshold of O₂(α¹Δ_g) yield and gain on relative population of vibrationally excited oxygen are studied. The threshold of O₂(α¹Δ_g) yield increases with rising of the relative population of vibrationally excited oxygen and can be some percents more than it was considered before. The gain coefficient weakly depends on the relative population of vibrationally excited oxygen.

Citation Download Citation

Ivan O. Antonov, Valery N. Azyazov, Sergey Yu. Pichugin, and Nikolay I. Ufimtsev "Role of vibrationally excited O₂(¹Δ) in COIL", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.610975

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