Temperature Dependence Cancellation of the Cs Clock Frequency in the Presence of Ne Buffer Gas

Details Temperature Dependence Cancellation of the Cs Clock Frequency in the Presence of Ne Buffer Gas Temperature Dependence Cancellation of the Cs Clock Frequency in the Presence of Ne Buffer Gas

2011-10-28

arxiv.org/abs/1110.6282v1

IEEE Trans. Instrum. Meas., vol. 60, no. 7, pp. 2262-2266, july 2011

Physics

Atomic Physics

Scientific paper

The temperature dependence of the Cs clock transition frequency in a vapor cell filled with Ne buffer gas has been measured. The experimental setup is based on the coherent population trapping (CPT) technique and a temporal Ramsey interrogation allowing a high resolution. A quadratic dependence of the frequency shift is shown. The temperature of the shift cancellation is evaluated. The actual Ne pressure in the cell is determined from the frequency shift of the 895nm optical transition. We can then determine the Cs-Ne collisional temperature coefficients of the clock frequency. These results can be useful for vapor cell clocks and especially for future micro-clocks.

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