面向未来光学频率标准的Ca/sup +/离子的俘获和激光冷却:时钟跃迁的观察

Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-12-31 DOI:10.1109/CPEM.1994.333230

S. Urabe, K. Hayasaka, M. Watanabe, H. Imajo, R. Ohmukai

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摘要

报道了未来光学频率标准中Ca/sup +/离子的俘获和激光冷却实验结果。Ca/sup +/离子被捕获并激光冷却到1k以下。为了观察电四极允许跃迁(时钟跃迁)，研制了低温下工作的激光二极管。用该激光器，用架电子双共振法观察了时钟跃迁

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Trapping and laser cooling of Ca/sup +/ ions toward future optical frequency standards: observation of clock transitions

Experimental results of trapping and laser cooling of Ca/sup +/ ions for future optical frequency standards are reported. Ca/sup +/ ions were trapped and laser-cooled to below 1 K. To observe the electric-quadrupole-allowed transitions (clock transitions), the laser diode operated at low temperature was developed. With this laser, the clock transitions were observed using the shelved electron double resonance method.<>

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Proceedings of Conference on Precision Electromagnetic Measurements Digest

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