Unlike a normal lens, which compresses or changes the actual shape of a light wave through diffraction, a time lens magnifies or compresses the time of a light wave through dispersion.

不同于通常的透镜通过衍射来压缩或者改变光的形态，时间透镜通过光的弥散放大或者压缩光波的时间。

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But for now let's simply say that we have a diffraction which we know occurs only by wave-like behavior and it involves the use of x-rays. Why x-rays?

但现在让我们来简单假设一下，我们知道，只波才发生衍射，而且衍射涉及了X光的使用，为什么是X光？

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This paper proclaims similarity of distribution between light strength of monochromic Fraunhofer's single - slit diffraction and square - wave frequency spectrum.

本文揭示了单色光夫琅和费单缝衍射的光强分布与矩形波频谱分布之间的相似性。

youdao

But for now let's simply say that we have a diffraction which we know occurs only by wave-like behavior and it involves the use of x-rays. Why x-rays?

但现在让我们来简单假设一下,我们知道,只波才发生衍射,而且衍射涉及了X光的使用，为什么是X光？

麻省理工公开课 - 固态化学导论课程节选