Kinetics of O{sub 2}({sup 1{Delta}}) self-quenching in the O{sub 2} - O{sub 2}({sup 1{Delta}}) - H{sub 2}O gas mixture
- Samara Branch of the P.N. Lebedev Physical Institute, Russian Academy of Sciences, Samara (Russian Federation)
The self-quenching kinetics of O{sub 2}({sup 1{Delta}}) molecules in the O{sub 2} - O{sub 2}({sup 1{Delta}}) - H{sub 2}O gas mixture produced by a chemical singlet-oxygen generator for an oxygen-iodine laser is investigated. The rate of change in the O{sub 2}({sup 1{Delta}}) concentration in continuous-flow tube is determined by measuring the absolute spectral irradiance of the O{sub 2} - O{sub 2}({sup 1{Delta}}) - H{sub 2}O gas mixture in the ranges of 600 - 800 nm and 1210 - 1330 nm. The effective rate constant of O{sub 2}({sup 1{Delta}}) deactivation in all possible channels of the O{sub 2}({sup 1{Delta}}) + O{sub 2}({sup 1{Delta}}) {yields} products reaction is found to be (8{+-}1.2)x10{sup -17} cm{sup 3} s{sup -1}. (active media)
- OSTI ID:
- 21471144
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Vol. 40, Issue 9; Other Information: DOI: 10.1070/QE2010v040n09ABEH014368; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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