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Proceedings Paper

Study Of The Production Cl[sub]2[/sub](B) From The Recombination Of Chlorine Atoms
Author(s): Pascale Prigent; Xavier Giraud; Henri Brunet
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Paper 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.

Paper Details

Date Published: 20 June 1989
PDF: 6 pages
Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); doi: 10.1117/12.950551
Show Author Affiliations
Pascale Prigent, Laboratoires de Marcoussis (France)
Xavier Giraud, Laboratoires de Marcoussis (France)
Henri Brunet, Laboratoires de Marcoussis (France)

Published in SPIE Proceedings Vol. 1031:
7th Intl Symp on Gas Flow and Chemical Lasers
Dieter Schuoecker, Editor(s)

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