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Saturation of a Molecular Absorption Line at 890 GHz

Nature volume 226, pages 941–942 (1970)Cite this article

Abstract

IT has been shown1,2 that the molecule 1 : 1 difluoroethylene CF2CH2 has an absorption line close to the main 890 GHz emission line of the HCN laser. The results suggest that the line is about 0.5 MHz from the laser line centre and has an absorption coefficient of α = 0.0008 ± 0.0003 nepers cm−1 at 0.1 torr. Experiments carried out in the laser cavity1 provided some evidence for saturation of this line. We describe here more explicit observations of saturation both intra and extra cavity.

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Author information

Authors and Affiliations

  1. Electrical Science Division, National Physical Laboratory, Teddington, Middlesex

    C. C. BRADLEY, R. G. JONES & J. BIRCH

  2. Department of Theoretical Chemistry, University of Bristol, Bristol, BS8 1TS

    G. DUXBURY

Authors
  1. C. C. BRADLEY
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  2. R. G. JONES
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  3. J. BIRCH
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  4. G. DUXBURY
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BRADLEY, C., JONES, R., BIRCH, J. et al. Saturation of a Molecular Absorption Line at 890 GHz. Nature 226, 941–942 (1970). https://doi.org/10.1038/226941a0

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  • DOI: https://doi.org/10.1038/226941a0

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