来自《耶鲁大学开放课程：新生有机化学 第4集 第4集》

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  So what you do is you have something
  而你要做的是把要观察的
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  on the surface of a slide here that you want to probe with this,
  什么东西放到一张底片的表面上
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  and you send light down the thing,
  然后对它送光
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  and if there is a molecule where the light's coming out,
  而如果那里有个原子的话
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  through this tiny hole, if there's a molecule there,
  从那个洞出来的光
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  that will take the blue light and emit red light.
  就会因原子的存在从蓝色变成红色
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  Then you know when it's under the tip.
  那么你就知道那有个原子了
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  Suppose there was just one molecule on the whole slide.
  假设整张底片上就一个原子
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  You scan it around until suddenly red light comes out.
  你扫着扫着突然红光出来了
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  Then you know that tip
  那你就知道
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  is pointed toward that particular molecule.
  尖尖正指着那个分子
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  So red light comes out and you have a detector that detects it,
  所以红光出来了 你有个探头捕到它