New Optically Pumped FIR Laser Lines and Frequency Measurements from CH3OD |
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Authors: | Edjar M Telles Lyndon R Zink and K M Evenson |
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Institution: | (1) Time and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado, 80303-3328, U.S.A.;(2) from CNPq-Brasilia-Brasil, Brazil |
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Abstract: | This work reports the discovery of 45 new optically pumped far-infrared (FIR) laser lines from CH3OD in the range 42.6 m to 207.2 m. A highly efficient CO2 laser was used as the pump laser for an Optically-pumped Fabry-Perot FIR laser. The frequencies of most of the new lines were measured in the range 1.7 to 6.4 THz. Twenty-eight CO2 lines were used as pump lines; nineteen of these had frequencies lower than those previously used to pump CH3OD in a FIR laser. Sixteen of the new FIR lines had absorption transitions which belong to the OD bending vibrational mode. |
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