Coherent trapping of atomic populations.
Coherent trapping of atomic populations.
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DOI：
10.1364/ol.3.000218
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发表时间：
1978-12
期刊：
影响因子：
3.6
通讯作者：
H. R. Gray;R. Whitley;Carlos R. Stroud
中科院分区：
文献类型：
--
作者：
H. R. Gray;R. Whitley;Carlos R. Stroud
在激光光谱学和同位素分离中，通常希望尽可能多地提取分布在许多基态子能级和低亚稳能级之间的原子或分子群体。我们描述了一种形式的相干捕获时发生的多个共振激光束被用来耦合到一个共同的上能级的各种基态。这一效应阻止了整个人口的提取。然后，我们研究了两个染料激光器和原子束的效果，并提出了可能的方法，以最大限度地提高泵浦效率。
It is often desirable in laser spectroscopy and isotope separation to extract as much as possible of an atomic or molecular population that is distributed among a number of ground-state sublevels and low-lying metastable levels. We describe a form of coherent trapping that occurs when multiple resonant laser beams are used to couple the various ground states to a common upper level. This effect prevents the extraction of the entire population. We then study the effect with two dye lasers and an atomic beam and suggest possible ways to maximize the pumping efficiency.