分析了激光线宽对同位素原子激发电离效率和选择性因子的影响。

We have studied the influence of laser linewidth on ionized efficiency and selectivity of isotopic atoms.

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因此，在这样激光功率条件下，为提高原子激发效率而增加激光谱线宽度的做法并不是必要的。

So it is not necessary to use a broad-band laser to guarantee excitation efficiency for an atom with hyperfine split levels.

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要让这些激发的原子发射激光，这依赖于激光束焦点两个决定性的性质。

Getting these atoms to lase then relied on two crucial properties of the beam's focus.

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So, electron promotion does not happen in terms of nitrogen, because it would not increased our number of unpaired electrons.

这里对于氮原子不会有电子激发，因为这不会增加,未配对电子的数目。

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When we increase the potential between the 2 electrodes that we have in the tube -- we actually split the h 2 into the individual hydrogen atoms, and not only do that, but also excite the atoms.

当我们增大两个电极之间电压,我们有-我们可以把氢气2,分解成单个的氢原子，不仅这样，还能激发原子。

麻省理工公开课 - 化学原理课程节选

So if we take our carbon atom here, which has two electrons in the 2 s orbital, and we promote one of these electrons into a 2 p orbital, what we see now is that yes, we do, we have four unpaired electrons.

这是碳原子，2s轨道里有两个电子，我们把一个电子激发到2p轨道里，我们看到现在，是的，我们有4个未配对电子。

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