Measurement of small-signal gain on COIL with chemically generated molecular iodine

0353726 - FZÚ 2011 RIV US eng J - Článek v odborném periodiku
Jirásek, Vít - Špalek, Otomar - Čenský, Miroslav - Kodymová, Jarmila
Measurement of small-signal gain on COIL with chemically generated molecular iodine.
IEEE Journal of Quantum Electronics. Roč. 46, č. 9 (2010), s. 1350-1353. ISSN 0018-9197. E-ISSN 1558-1713
Výzkumný záměr: CEZ:AV0Z10100523
Klíčová slova: chemical lasers * iodine * gain measurement
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 2.477, rok: 2010

A chemical gas-phase reaction between Cl2 and HI was used in the generation of molecular iodine for the chemical oxygen-iodine laser (COIL) operation. A yield of I2 in the generation reaction up to 85% was achieved in a reasonable volume of the reactor. A small-signal gain up to 0.75 %/cm at a temperature of 150 K in the center of supersonic cavity was measured. A comparison with the established evaporation way of I2 delivery confirmed that the chemical method has little or no impact on the COIL pumping kinetics. This chemical method is easily scalable and can simplify the COIL operation by providing better control of I2 flow rate.
Trvalý link: http://hdl.handle.net/11104/0192887