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Assignments of optically pumped CD3OH laser lines

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Abstract

Six FIR laser lines from CD3OH pumped by the 10R(36) and the 10R(18) CO2 laser lines are assigned to specific rotational energy levels in the excited C−0 stretch state. It is found that their upper laser levels are shifted by a Fermi resonance between the C−0 stretch vibration and the third and forth harmonics of the torsional mode. The Fermi resonance shifts are +0.332 cm−1 and +2.251 cm−1 for the upper laser levels pumped by the 10R(36) and the 10R(18) CO2 laser lines, respectively. Calculated frequencies of the pump and the laser transitions agree with those of the pump CO2 laser lines and the observed FIR laser lines within estimated accuracy.

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Author notes

  1. Tetsu Kachi

    Present address: Toyota Central Research and Development Labs., Inc., Nagakute-cho, 480-11, Aichi-ken, Japan

Authors and Affiliations

  1. Department of Applied Physics, Faculty of Engineering, Nagoya University, 464, Nagoya, Japan

    Tetsu Kachi & Shozo Kon

Authors
  1. Tetsu Kachi
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  2. Shozo Kon
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Kachi, T., Kon, S. Assignments of optically pumped CD3OH laser lines. Int J Infrared Milli Waves 4, 767–777 (1983). https://doi.org/10.1007/BF01009695

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  • DOI: https://doi.org/10.1007/BF01009695

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