Measurement of the caesium 6S1/2?8P1/2 transition frequency
Measurement of the caesium 6S1/2?8P1/2 transition frequency
复制标题
铯6S1/2?8P1/2跃迁频率的测量
DOI：
10.1007/s003400000324
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
P. Baird
中科院分区：
文献类型：
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作者：
Y. Liu;P. Baird
用激光光谱仪观察到铯原子6S1/2、 8P1/2、3/2跃迁分别位于387.6 nm和388.8 nm，线宽为5 MHz。用校准的5S1/2、5D5/2双光子跃迁和精密干涉法测量了6S1/2、8P1/2跃迁的绝对频率，其不确定度为±1 MHz。讨论了这种铯跃迁作为蓝紫外区有用的二次频标的潜力。
Abstract.The caesium 6S1/2? 8P1/2,3/2 transitions at 387.6 nm and 388.8 nm have been observed with a linewidth of <5 MHz by laser spectroscopy. The absolute frequency of the 6S1/2?8P1/2 transition was determined to an uncertainty of ±1 MHz using the calibrated rubidium 5S1/2?5D5/2 two-photon transition and accurate interferometry. The potential of this caesium transition as a useful secondary frequency standard in blue–UV region is discussed.