A Novel Absorption Resonance for Atomic Clocks

David F. Phillips, Irina Novikova, Sergei Zibrov, Chris Smallwood, Aleksei V. Taichenachev, Valeriy I. Yudin, Ronald L. Walsworth, Alexander S. Zibrov

Abstract:	We report an experimental study of an all-optical three-photon-absorption resonance (known as an “N-resonance”) and discuss its potential application as an alternative to atomic clocks based on coherent population trapping (CPT). We present measurements of the N-resonance contrast, width and light shift for 87Rb under various conditions including both D1 and D2 optical transitions. Under conditions such that first-order light shifts cancel, we observe promising short-term frequency stability (˜ 1.5 × 10-11 t -1/2) for an N-resonance on the D1 transition of 87Rb vapor.
Published in:	Proceedings of the 37th Annual Precise Time and Time Interval Systems and Applications Meeting August 29 - 31, 2005 Vancouver, Canada
Pages:	767 - 773
Cite this article:	Phillips, David F., Novikova, Irina, Zibrov, Sergei, Smallwood, Chris, Taichenachev, Aleksei V., Yudin, Valeriy I., Walsworth, Ronald L., Zibrov, Alexander S., "A Novel Absorption Resonance for Atomic Clocks," Proceedings of the 37th Annual Precise Time and Time Interval Systems and Applications Meeting, Vancouver, Canada, August 2005, pp. 767-773.
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