Share Email Print
cover

Proceedings Paper

Chemical oxygen-iodine laser with atomic iodine generated via Cl or F atoms
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Two alternative chemical methods of atomic iodine generation for a chemical oxygen-iodine laser (COIL) were studied. These methods are based on fast reactions of gaseous hydrogen iodide with chemically produced chlorine and fluorine atoms. Both processes were studied first in small-scale reactors. A yield of atomic iodine in the Cl system and nitrogen (non-reactive) atmosphere exceeded 80%, while in the F system it was only up to 27% related to F2 or 50% related to HI. The process of atomic iodine generation via Cl atoms was employed in operation of the supersonic COIL. A laser power of 430 W at 40 mmol Cl2/s, and the small signal gain up to 0.4%/cm were attained. The proposed methods promise an increase in laser power, easier control of laser operation, and simpler iodine management in comparison with the conventional source of atomic iodine using I2. The experimental results obtained so far with this experimental arrangement did not proved yet increasing COIL chemical efficiency because some process quenching a part of singlet oxygen was indicated. Therefore a modified experimental set-up has been designed and prepared for further investigation.

Paper Details

Date Published: 23 March 2005
PDF: 6 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.611007
Show Author Affiliations
Otomar Spalek, Institute of Physics (Czech Republic)
Institute of Inorganic Chemistry (Czech Republic)
Vit Jirasek, Institute of Physics (Czech Republic)
Institute of Inorganic Chemistry (Czech Republic)
Miroslav Censky, Institute of Physics (Czech Republic)
Institute of Inorganic Chemistry (Czech Republic)
Jarmila Kodymova, Institute of Physics (Czech Republic)
Ivo Jakubec, Institute of Inorganic Chemistry (Czech Republic)
Gordon D. Hager, Air Force Research Lab. (United States)


Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

© SPIE. Terms of Use
Back to Top