Frequency measurements of 9- and 10-μm N2O lasertransitions |
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| Authors: | Tachikawa M. Evenson K.M. Zink L.R. Maki A.G. |
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| Affiliation: | Time & Frequency Div., Nat. Inst. of Stand. & Technol., Boulder, CO; |
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| Abstract: | We have measured frequencies of N2O transitions by heterodyning sub-Doppler fluorescence-stabilized N2O laser radiation with that from a reference CO2 laser. A high-resolution cavity incorporates a ribbed tube and a highly reflective grating, permitting the CW oscillation of both the 100 0-0200 9-μm and the 1000-0001 10-μm regular bands. This is the first sub-Doppler frequency measurement of the 9-μm band. The accuracy in the determination of the rotational constants for both bands has been improved by an order of magnitude, and calculated transition frequencies are presented |
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