Abstract
The transition frequencies of thei-component of the R(99)15-1 and thew-component of the R(85)26-0 transition in the B-X system of molecular127I2 have been determined with an overall relative standard uncertainty of 1.3 · 10−10. For this purpose a commercial linear dye laser has been modified and stabilized to the corresponding iodine line. This dye laser serves as a transportable frequency standard which is compared with the wavelength standards of the PTB. The evaluation of an experiment for testing special relativity at the test storage ring (TSR) in Heidelberg is based on the precision of the reported interferometric wavelength comparison.
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The authors thank H. Darnedde for the loan of anI 2 stabilized helium-neon laser and for checking its frequency against his standard. We gratefully acknowledge fruitful discussions with F. Riehle during the experiment.
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Grieser, R., Bönsch, G., Dickopf, S. et al. Precision measurement of two iodine lines at 585 nm and 549 nm. Z. Physik A - Hadrons and Nuclei 348, 147–150 (1994). https://doi.org/10.1007/BF01289603
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DOI: https://doi.org/10.1007/BF01289603