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Proceedings Paper

Optical frequency standards based on mercury and aluminum ions
Author(s): W. M. Itano; J. C. Bergquist; A. Brusch; S. A. Diddams; T. M. Fortier; T. P. Heavner; L. Hollberg; D. B. Hume; S. R. Jefferts; L. Lorini; T. E. Parker; T. Rosenband; J. E. Stalnaker
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Paper Abstract

Single-trapped-ion frequency standards based on a 282 nm transition in 199Hg+ and on a 267 nm transition in 27Al+ have been developed at NIST over the past several years. Their frequencies are measured relative to each other and to the NIST primary frequency standard, the NIST-F1 cesium fountain, by means of a self-referenced femtosecond laser frequency comb. Both ion standards have demonstrated instabilities and inaccuracies of less than 1 × 10-16.

Paper Details

Date Published: 12 September 2007
PDF: 11 pages
Proc. SPIE 6673, Time and Frequency Metrology, 667303 (12 September 2007); doi: 10.1117/12.734662
Show Author Affiliations
W. M. Itano, National Institute of Standards and Technology (United States)
J. C. Bergquist, National Institute of Standards and Technology (United States)
A. Brusch, National Institute of Standards and Technology (United States)
S. A. Diddams, National Institute of Standards and Technology (United States)
T. M. Fortier, National Institute of Standards and Technology (United States)
T. P. Heavner, National Institute of Standards and Technology (United States)
L. Hollberg, National Institute of Standards and Technology (United States)
D. B. Hume, National Institute of Standards and Technology (United States)
S. R. Jefferts, National Institute of Standards and Technology (United States)
L. Lorini, National Institute of Standards and Technology (United States)
T. E. Parker, National Institute of Standards and Technology (United States)
T. Rosenband, National Institute of Standards and Technology (United States)
J. E. Stalnaker, National Institute of Standards and Technology (United States)

Published in SPIE Proceedings Vol. 6673:
Time and Frequency Metrology
R. Jason Jones, Editor(s)