Abstract
For a neutral -based optical frequency standard we report a fractional frequency instability of in 1 s, which represents a fivefold improvement over existing atomic frequency standards. Using the technique of optical Bordé–Ramsey spectroscopy with a sample of trapped atoms, we have resolved linewidths as narrow as 200 Hz (FWHM). With colder atoms this system could potentially achieve an instability as low as in 1 s. Such low instabilities are important for frequency standards and precision tests of fundamental physics.
© 2000 Optical Society of America
Full Article | PDF ArticleMore Like This
K. R. Vogel, S. A. Diddams, C. W. Oates, E. A. Curtis, R. J. Rafac, W. M. Itano, J. C. Bergquist, R. W. Fox, W. D. Lee, J. S. Wells, and L. Hollberg
Opt. Lett. 26(2) 102-104 (2001)
V. Vassiliev, V. Velichansky, P. Kersten, T. Trebst, and F. Riehle
Opt. Lett. 23(15) 1229-1231 (1998)
John J. McFerran and Andre N. Luiten
J. Opt. Soc. Am. B 27(2) 277-285 (2010)