The C + N2O → CN(A,X) + NO Reaction: a Possible Candidate for a Near Infrared Electronic Transition Chemical Laser?

  • L. Torchin
  • P. Prigent
  • H. Brunet
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 15)


Preliminary experiments with a fast-flow low-pressure apparatus had shown that a total population inversion existed between the CN(A,v′=0) and (X,v″=1) levels. However, the CN density was too low for lasing. In order to increase the atomic carbon production, a hollow cathode was realized, to form carbon atoms by electrical dissociation of CO highly diluted in He. In fact, a 20 times increase in the CN density was observed, corresponding to a 3% dissociation degree. But the total population inversion previously observed didn’t exist anymore. This was ascribed to secondary reactions which modify the vibrational distribution, and also to the influence of high-lying electronic states of atomic carbon.


Vibrational Level Hollow Cathode Vibrational Temperature Negative Glow Vibrational Distribution 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • L. Torchin
    • 1
  • P. Prigent
    • 1
  • H. Brunet
    • 1
  1. 1.Division OptroniqueLaboratoires de Marcoussis, Centre de Recherches de la C.G.E.MarcoussisFrance

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