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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 5 — Mar. 1, 2006
  • pp: 622–624

Cancellation of light shifts in an N-resonance clock

Irina Novikova, David F. Phillips, Alexander S. Zibrov, Ronald L. Walsworth, Aleksei V. Taichenachev, and Valeriy I. Yudin  »View Author Affiliations

Optics Letters, Vol. 31, Issue 5, pp. 622-624 (2006)

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We demonstrate that first-order light shifts can be canceled for an all-optical, three-photon-absorption resonance (N-resonance) on the D 1 transition of Rb 87 . This light-shift cancellation facilitates improved frequency stability for an N-resonance clock. For example, by using a tabletop apparatus designed for N-resonance spectroscopy, we measured a short-term fractional frequency stability (Allan deviation) of 1.5 × 10 11 τ 1 2 for observation times of 1 s τ 50 s . Further improvements in frequency stability should be possible with an apparatus designed as a dedicated N-resonance clock.

© 2006 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.3690) Atomic and molecular physics : Line shapes and shifts

ToC Category:
Quantum Optics

Original Manuscript: October 10, 2005
Revised Manuscript: October 20, 2005
Manuscript Accepted: October 30, 2005

Irina Novikova, David F. Phillips, Alexander S. Zibrov, Ronald L. Walsworth, Aleksei V. Taichenachev, and Valeriy I. Yudin, "Cancellation of light shifts in an N-resonance clock," Opt. Lett. 31, 622-624 (2006)

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