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
Article

Abstract

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 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

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

Personalised recommendations