Line positions and intensities in theν2 band of D2O improvied pumped D2O laser frequencies

  • C. Camy-Peyret
  • J. -M. Flaud
  • A. Mahmoudi
  • G. Guelachvili
  • J. W. C. Johns


Using high resolution Fourier transform spectra, thev2 band of D2O has been analysed leading to an extensive and precise set of rotational energy levels of the (0 1 0) vibrational state. These levels are reproduced very satisfactorily with a Watson type Hamiltonian and precise rotational constants as well as the band centerv2 = 1178.3789 ± 0.0005 cm-1 are determined. A total of 61 line intensities were measured, much attention being paid to a possible contamination of the D2O sample by HDO. A least squares fit of the intensity data has provided us with an expansion of the transition moment operator of thev2 band from which the first derivative\(\left( {\frac{{\partial ^x \mu }}{{\partial q_2 }}} \right)_e \) = 0.1690 ± 0.0030 D has been deduced. Finally the complete synthetic spectrum of this band has been computed. All these results have been used to derive improved frequencies for the known pumped and far-infrared laser lines of D2O and to predict new possible coincidences with the available CO2 laser lines.

Key words

Fourier transform infrared spectroscopy Deuterated water vapor Laser frequencies 


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  1. 1.
    T.A. De Temple, “List of the optically pumped laser lines of D2O” Volume 2, p. 337 of “Infrared and Millimeter Waves”, Plenum 1984 (edited by K.J. Button).Google Scholar
  2. 2.
    C.L. Lin and J.H. Shaw, J. Mol. Spectrosc.66, 441–447 (1977).Google Scholar
  3. 3.
    T.L. Worchesky, K.J. Ritter, J.P. Sattler and W.A. Riessler, Optics Letters2, 70–71 (1978).Google Scholar
  4. 4.
    R.A. Toth, Private communication.Google Scholar
  5. 5.
    N. Papineau, J.-M. Flaud, C. Camy-Peyret and G. Guelachvili, J. Mol. Spectrosc.87, 219–232 (1981).Google Scholar
  6. 6.
    G. Steenbeckeliers and J. Bellet, J. Mol. Spectrosc.45, 10–34 (1973).Google Scholar
  7. 7.
    J.K. Messer, F.C. De Lucia and P. Helminger, J. Mol. Spectrosc.105, 139–155 (1984).Google Scholar
  8. 8.
    J.-M. Flaud, C. Camy-Peyret and R.A. Toth, “Water Vapour line parameters from microwave to medium infrared” Volume 19, Int. Tables of Selected Constants, Pergamon Oxford (1981).Google Scholar
  9. 9.
    C. Camy-Peyret and J.-M. Flaud, Mol. Phys.32, 523–537 (1976).Google Scholar
  10. 10.
    C. Camy-Peyret and J.-M. Flaud, “Vibration-rotation dipole moment operator for asymmetric tops”, in Molecular Spectroscopy; Modern Research Volume 3, Ed. K. Narahari Rao, Academic Press (1985).Google Scholar
  11. 11.
    S.J. Petuchowsky, A.T. Rosenberger and T.A. De Temple, I.E.E.E., J. Quan. Electron.QE-13, 476–481 (1977).Google Scholar
  12. 12.
    R.E. Muenchausen, R.D. May and G.W. Hills, Optics Comm.48, 317–321 (1984).Google Scholar
  13. 13.
    F. Keilmann, R.L. Sheffield, J.R. Leite, M.S. Feld and A. Javan, Appl. Phys. Letters26, 19–22 (1975).Google Scholar

Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • C. Camy-Peyret
    • 1
  • J. -M. Flaud
    • 1
  • A. Mahmoudi
    • 1
  • G. Guelachvili
    • 2
  • J. W. C. Johns
    • 3
  1. 1.Laboratoire de Physique Moléculaire et d'Optique AtmosphériqueOrsay CedexFrance
  2. 2.Laboratoire d'InfrarougeOrsay CedexFrance
  3. 3.Herzberg Institute of AstrophysicsNational Research Council of CanadaOttawaCanada

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