A 303-MHZ FREQUENCY STANDARD BASED ON TRAPPED BE+ IONS

被引：150

作者：

BOLLINGER, JJ

HEINZEN, DJ

ITANO, WM

GILBERT, SL

WINELAND, DJ

机构：

[1] National Institute of Standards and Technology, Boulder, co

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1991年 / 40卷 / 02期

关键词：

D O I：

10.1109/TIM.1990.1032897

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A 303-MHz hyperfine transition in the ground state of Be-9+ was used as a basis of a frequency standard. The ions were stored in a Penning ion trap. Linewidths as narrow as 900-mu-Hz were obtained. The frequency stability was measured to be better than 3 x 10(-12)tau-1/2. The inaccuracy in the second-order Doppler shift was reduced to 5 parts in 10(15) by laser cooling. An apparent pressure shift with an unexpectedly large value was discovered which limits the accuracy of the current experiment to approximately 1 part in 10(13).

引用

页码：126 / 128

页数：3

共 17 条

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