Frequency measurements on far-infrared emissions from12C16O2-pumped methyl chloride and from12C18O2-pumped difluoromethane

  • J. A. Golby
  • N. R. Cross
  • D. J. E. Knight


The frequencies of 42 far-infrared laser lines have been measured by mixing with high-order harmonics of microwave frequencies in a Josephson junction. A total of 5 emissions between 334 and 1887 μm have been measured from12C16O2-pumped methyl chloride (CH3Cl) and 37 emissions between 116 and 1092 μm in12C18O2-pumped difluoromethane (CH2F2). Additional data is given on the laser emission characteristics.

Key words

methyl chloride (CH3Cl) difluoromethane (CH2F2laser frequency measurements Josephson junction harmonic mixing 


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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • J. A. Golby
    • 1
  • N. R. Cross
    • 1
  • D. J. E. Knight
    • 1
  1. 1.Division of Quantum MetrologyNational Physical LaboratoryTeddingtonUK

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