Nonequilibrium population of the first vibrational level of O{sub 2}({sup 1{Sigma}}) molecules in O{sub 2} - O{sub 2}({sup 1{Delta}}) - H{sub 2}O gas flow at the output of chemical singlet-oxygen generator

Journal Article · Sat Nov 13 00:00:00 EST 2010 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2010V040N09ABEH014357· OSTI ID:21471143

Zagidullin, M V ^[1]

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1. Samara Branch of the P.N. Lebedev Physical Institute, Russian Academy of Sciences, Samara (Russian Federation)

The concentrations of electron-excited particles have been determined by measuring the absolute spectral irradiance in the range of 600 - 800 nm of O{sub 2} - O{sub 2}({sup 1{Delta}}) - H{sub 2}O gas mixture at the output of a chemical singlet-oxygen generator (SOG). A nonequilibrium population of the first vibrational level of O{sub 2}({sup 1{Sigma}}) molecules has been clearly observed and found to depend on the water vapour content. In correspondence with the results of these measurements and according to the analysis of kinetics processes in the O{sub 2} - O{sub 2}({sup 1{Delta}}) - H{sub 2}O mixture, the maximum number of vibrational quanta generated in the O{sub 2}({sup 1{Delta}}) + O{sub 2}({sup 1{Delta}}) {yields} O{sub 2}({sup 1{Sigma}}) + O{sub 2}({sup 3{Sigma}}) reaction is 0.05 {+-} 0.03. It is concluded that the vibrational population of O{sub 2}({sup 1{Delta}}) at the output of the SOG used in a chemical oxygen-iodine laser is close to thermal equilibrium value. (active media)

• OSTI ID: 21471143
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 40, Issue 9; Other Information: DOI: 10.1070/QE2010v040n09ABEH014357; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ELECTRONS
EXCITED STATES
GAS FLOW
GAS LASERS
IODINE
KINETICS
MOLECULES
OXYGEN
POPULATION INVERSION
RADIANT FLUX DENSITY
THERMAL EQUILIBRIUM
WATER VAPOR
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
EQUILIBRIUM
FERMIONS
FLUID FLOW
FLUIDS
FLUX DENSITY
GASES
HALOGENS
LASERS
LEPTONS
NONMETALS
VAPORS