原子钟的新型吸收共振

Proceedings of the 2005 IEEE International Frequency Control Symposium and Exposition, 2005. Pub Date : 2005-08-29 DOI:10.1109/FREQ.2005.1574031

D. Phillips, I. Novikova, S. Zibrov, C. Smallwood, A. Taichenachev, V. Yudin, R. Walsworth, A. Zibrov

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引用次数: 3

摘要

我们报告了一项全光学三光子吸收共振(称为“n共振”)的实验研究，并讨论了其作为基于相干种群捕获(CPT)的原子钟替代品的潜在应用。我们测量了/sup 87/Rb在不同条件下的n共振对比度、宽度和光移，包括D/sub 1/和D/sub 2/光学跃迁。在一阶光移抵消的条件下，我们观察到/sup 87/ Rb蒸气的n -共振在Di跃迁上有很好的短期频率稳定性(/spl sim/ 1.5 /spl times/ 10/sup -11/ /spl tau//sub - 1/2 /)。

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A novel absorption resonance for atomic clocks

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 /sup 87/Rb under various conditions including both D/sub 1/ and D/sub 2/ optical transitions. Under conditions such that first-order light shifts cancel, we observe promising short-term frequency stability (/spl sim/ 1.5 /spl times/ 10/sup -11/ /spl tau//sub - 1/2 /) for an N-resonance on the Di transition of /sup 87/ Rb vapor.

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Proceedings of the 2005 IEEE International Frequency Control Symposium and Exposition, 2005.

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