Abstract
The frequencies of three lasers stabilized to molecular absorptions were measured with an infrared-frequency synthesis chain extending upwards from the cesium frequency standard. The measured values are 29.442 483 315 (25) THz for the 10.18-μm R(30) transition in CO2, 32.134 266 891 (24) THz for the 9.33-μm R(10) transition in CO2, and 88.376 181 627 (50) THz for the 3.39-μm P(7) transition in CH4. The frequency of methane, when multiplied by the measured wavelength reported in the following letter, yields 299 792 456.2(1.1) m/sec for the speed of light.
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Dates
Type | When |
---|---|
Created | 21 years, 7 months ago (Jan. 30, 2004, 3:35 p.m.) |
Deposited | 1 year, 7 months ago (Feb. 5, 2024, 3:11 a.m.) |
Indexed | 3 months, 2 weeks ago (May 21, 2025, 2:10 a.m.) |
Issued | 52 years, 6 months ago (Feb. 15, 1973) |
Published | 52 years, 6 months ago (Feb. 15, 1973) |
Published Print | 52 years, 6 months ago (Feb. 15, 1973) |
@article{Evenson_1973, title={Accurate frequencies of molecular transitions used in laser stabilization: the 3.39-μm transition in CH4 and the 9.33- and 10.18-μm transitions in CO2}, volume={22}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1654607}, DOI={10.1063/1.1654607}, number={4}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Evenson, K.M. and Wells, J.S. and Petersen, F.R. and Danielson, B.L. and Day, G.W.}, year={1973}, month=feb, pages={192–195} }