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Progress towards a Cadmium Ion Microwave Clock: Improvement of the Signal-to-Noise Ratio of the Clock Signal based on Sympathetic Cooling

机译:迈进镉离子微波时钟的进展:基于交感神经冷却的时钟信号的信号 - 信噪比的提高

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摘要

Stable and large sympathetically cooled 113Cd+ ions were obtained for promising microwave frequency standard. The fluorescence decay during interrogation is one of the main limits to the signal-to-noise ratio (SNR) of clock signal. The decay phenomenon is investigated under different trap condition in both laser cooling (LC) and sympathetic cooling (SC) scenarios. A preliminary evaluation of the system stability and noise limiting is presented.
机译:稳定而大的同情冷却 113 获得CD +离子以获得有前途的微波频率标准。询问期间的荧光衰减是时钟信号的信噪比(SNR)的主要限制之一。在激光冷却(LC)和交感神经冷却(SC)方案中,在不同的陷阱条件下研究了衰变现象。提出了对系统稳定性和噪声限制的初步评估。

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