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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 10 — May. 20, 2013
  • pp: 12434–12442

High-accuracy measurement of the 113Cd+ ground-state hyperfine splitting at the milli-Hertz level

S.G. Wang, J.W. Zhang, K. Miao, Z.B. Wang, and L.J. Wang  »View Author Affiliations

Optics Express, Vol. 21, Issue 10, pp. 12434-12442 (2013)

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We have developed a microwave frequency standard based on the 15.2 GHz ground-stated hyperfine transition of 113Cd+ ions. Using a laser-cooled ion cloud trapped in a linear quadrupole Paul trap, the clock transition frequency is measured to be 15 199 862 855.0125(87) Hz, with an accuracy at the 10−13 level. The main errors are from the microwave frequency reference used in the experiment. The precision is improved by nearly two orders of magnitude than that reported before.

© 2013 OSA

OCIS Codes
(020.2930) Atomic and molecular physics : Hyperfine structure
(140.3320) Lasers and laser optics : Laser cooling
(300.6520) Spectroscopy : Spectroscopy, trapped ion

ToC Category:
Atomic and Molecular Physics

Original Manuscript: February 8, 2013
Revised Manuscript: March 29, 2013
Manuscript Accepted: April 19, 2013
Published: May 14, 2013

S.G. Wang, J.W. Zhang, K. Miao, Z.B. Wang, and L.J. Wang, "High-accuracy measurement of the 113Cd+ ground-state hyperfine splitting at the milli-Hertz level," Opt. Express 21, 12434-12442 (2013)

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