Applied Physics B

, Volume 29, Issue 3, pp 227–233 | Cite as

Ethylene monitoring by differential absorption with a CO2 waveguide laser

  • M. Khelkhal
  • F. Herlemont
  • M. Lyszyk
  • J. Lemaire
Contributed Papers

Abstract

In this paper we report on a differential absorption technique using a CO2 waveguide laser. The method is based on the measurement of the differential absorption between two different frequencies of the same selected CO2 laser line. The sensitivity of the technique depends strongly on the total pressure and has been estimated to be about a few tens of ppb or better over a 1 km path length in C2H4 diluted with air to a total pressure of a few tens of torrs. Its relative simplicity and high sensitivity at low total pressure enable this technique to be applied to gas detection either at high altitude or to local monitoring of a low pressure sample.

PACS

86 70L 07.60 42.80 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R.R.Menzies, M.S.Shumate: Appl. Opt.15, 2080 (1976)Google Scholar
  2. 2.
    C.Jaussaud: Rapport C.E.A. R461 (May 1975)Google Scholar
  3. 3.
    S.O.Kanstad, A.B.Bjerkestrand, T.Lund: J. Phys. E (Sci. Instrum.)10, 998 (1977)Google Scholar
  4. 4.
    I.Comera, C.Jaussaud, A.Charpentier, J.Fouquin: Private communicationGoogle Scholar
  5. 5.
    K.Hotta, K.Inoue, K.Washio: Laser Equipement Development Div., Nippon Electric Co. Ltd. Kawasaki, JapanGoogle Scholar
  6. 6a.
    S.P.Burg, E.A.Burg: Science148, 1190 (1965)Google Scholar
  7. 6b.
    D.J.Osborne: Sci. Prog. Oxford64, 51 (1979)Google Scholar
  8. 7.
    P.Perlmutter, S.Shrikman, M.Slatkine: Appl. Opt.13, 2267 (1979)Google Scholar
  9. 8.
    Ch.Lambeau, A.Fayt: Private communicationGoogle Scholar
  10. 9.
    A.Mayer, J.Comera, H.Charpentier, C.Jaussaud: Appl. Opt.17, 391 (1978)Google Scholar
  11. 10.
    J.Schewchun, B.K.Garside, E.A.Ballik, C.C.Y.Kwan, M.M.Elsherbiny, G.Hogenkamp, A.Kazadjian: Appl. Opt.15, 340 (1976)Google Scholar
  12. 11.
    R.R.Patty, G.M.Russworm, W.A.McClenny, O.R.Morgan: Appl. Opt.13, 2850 (1974)Google Scholar

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • M. Khelkhal
    • 1
  • F. Herlemont
    • 1
  • M. Lyszyk
    • 1
  • J. Lemaire
    • 1
  1. 1.Laboratoire de Spectroscopie Hertzienne, Laboratoire Associé au C.N.R.S. No. 249Université de LilleVilleneuve d'Ascq CedexFrance

Personalised recommendations