Study Of The Production Cl[sub]2[/sub](B) From The Recombination Of Chlorine Atoms

Pascale Prigent; Xavier Giraud; Henri Brunet

doi:10.1117/12.950551

20 June 1989 Study Of The Production Cl₂(B) From The Recombination Of Chlorine Atoms

Pascale Prigent, Xavier Giraud, Henri Brunet

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950551
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

Chemiluminescences emitted during recombination of ground state Cl atoms were studied in the aim of obtaining a laser emission on the B-X electronic transition of the chlorine molecule. Cl atoms were produced by dissociation of pure C12, in a turbulent electric discharge, at pressures between 10 and 50 Torr. Chemiluminescences were observed for the same pressures downstream from the discharge. The experimental spectra were compared to synthetic ones obtained from a modelling of the chlorine afterglow. A population density of Nv'=0 ≈ 1013 molecules/cm3 was estimated for the v' = 0 level of the B state, for an equilibrium vibrational temperature of 700 K. Assuming a long radiative lifetime of the B state, the calculated optical gain is weak, α ≤ 10-5/cm at λ = 1.1 gm.

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Pascale Prigent, Xavier Giraud, and Henri Brunet "Study Of The Production Cl₂(B) From The Recombination Of Chlorine Atoms", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950551

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