Chemical oxygen-iodine laser with atomic iodine generated via fluorine atoms

Otomar Špalek; Vít Jirásek; Miroslav Čenský; Jarmila Kodymová; Irena Picková; Ivo Jakubec

doi:10.1117/12.753179

25 July 2007 Chemical oxygen-iodine laser with atomic iodine generated via fluorine atoms

Otomar Špalek, Vít Jirásek, Miroslav Čenský, Jarmila Kodymová, Irena Picková, Ivo Jakubec

Proceedings Volume 6735, International Conference on Lasers, Applications, and Technologies 2007: High-Power Lasers and Applications; 673506 (2007) https://doi.org/10.1117/12.753179
Event: International Conference on Lasers, Applications, and Technologies '07, 2007, Minsk, Belarus

Abstract

A chemical method of atomic iodine generation for the chemical oxygen-iodine laser (COIL) was studied. This method is based on fast reaction of gaseous hydrogen iodide with chemically produced fluorine atoms formed by a preceding reaction of molecular fluorine with nitrogen oxide. Iodine atoms were generated in special reactors and injected into the supersonic flow of nitrogen in the COIL cavity. Concentration profiles of atomic iodine both along and perpendicular to the primary gas flow were measured in dependence on flow rates of the reaction gases. Very high concentration of atomic iodine (up to 3.2x10¹⁵ cm^-3) was measured in the laser cavity with a good yield related to both F₂ (up to nearly 100 %) and HI (up to 60%). An important advantage of this method is using of commercially available reactive gases. Some drawback of this method for its application in the COIL is a rather high gas temperature (250 - 400 K).

Citation Download Citation

Otomar Špalek, Vít Jirásek, Miroslav Čenský, Jarmila Kodymová, Irena Picková, and Ivo Jakubec "Chemical oxygen-iodine laser with atomic iodine generated via fluorine atoms", Proc. SPIE 6735, International Conference on Lasers, Applications, and Technologies 2007: High-Power Lasers and Applications, 673506 (25 July 2007); https://doi.org/10.1117/12.753179

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