Application of vortex-flow dc glow discharge for atomic iodine production for oxygen-iodine laser

Pavel Anatolievich Mikheyev; Alexander Anatolievich Shepelenko

doi:10.1117/12.558192

16 June 2004 Application of vortex-flow dc glow discharge for atomic iodine production for oxygen-iodine laser

Pavel Anatolievich Mikheyev, Alexander Anatolievich Shepelenko

Proceedings Volume 5479, Laser Optics 2003: High-Power Gas Lasers; (2004) https://doi.org/10.1117/12.558192
Event: Laser Optics 2003, 2003, St. Petersburg, Russian Federation

Abstract

The possibility to produce atomic iodine decomposing methyl iodide with the help of the vortex-flow DC glow discharge for use in oxygen-iodine laser has been investigated experimentally. Number density of iodine atoms had been measured via absorption of single frequency tunable semiconductor laser radiation at 1.315 μm. Two cases were studied: (1) the products of discharge in oxygen decomposed methyl iodide in the downstream afterglow; (2) methyl iodide was decomposed in the discharge plasma. Atomic iodine concentrations enough to operate oxygen iodine laser were obtained. In the first case iodine atoms number density up to 1.3•10¹⁵ cm^-3 was achieved for oxygen pressure 24 Torr. A kinetic model showing good agreement with experiment had been developed. In the second, vortex flow discharge stabilization permitted to sustain glow discharge in highly negative gas mixture that contained halogen, using Ar as carrier gas at pressures up to 20 Torr. Iodine atoms number density of 3.6•10¹⁵ cm^-3 was achieved at 15 Torr pressure of Ar.

Citation Download Citation

Pavel Anatolievich Mikheyev and Alexander Anatolievich Shepelenko "Application of vortex-flow dc glow discharge for atomic iodine production for oxygen-iodine laser", Proc. SPIE 5479, Laser Optics 2003: High-Power Gas Lasers, (16 June 2004); https://doi.org/10.1117/12.558192

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