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Observation and assignment of submillimetre laser lines from CH3OH pumped by isotopic CO2 lasers

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Abstract

New laser lines have been generated using methanol when isotopically labelled CO2 is used in the pump laser. 19 lines have been found when13C16O2 is used and 29 when12C18O2 is used. The wavelengths of the emission lines have been measured with a relative accuracy of 5×10−3 using the submillimetre resonator as a scanning Fabry-Perot interferometer, and the polarizations of the lines have also been measured. Some of the laser lines have been assigned to pure rotational transitions in the excited state associated with the CO stretching mode, other lines are believed to originate from pumping in combination bands.

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Authors and Affiliations

  1. School of Chemistry, University of Bristol, B58 1 TS, Bristol, England

    J. C. Petersen

  2. Department of Natural Philosophy, University of Strathclyde, 107 Rottenrow, G4 ONG, Glasgow, Scotland

    G. Duxbury

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  1. J. C. Petersen
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  2. G. Duxbury
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Petersen, J.C., Duxbury, G. Observation and assignment of submillimetre laser lines from CH3OH pumped by isotopic CO2 lasers. Appl. Phys. B 27, 19–25 (1982). https://doi.org/10.1007/BF00697292

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  • DOI: https://doi.org/10.1007/BF00697292

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