每个晶体结构由相间的二氧化硅层和高分子聚合材料层组成,相同材料层之间的间距与声子的波长相匹配。
Each crystal structure consists of alternating layers of silicon dioxide and a polymer material, so that the spacing between similar layers matches the wavelength of phonons.
他们取了个晶体,一个具有规则原子平面的,镍晶体,这些面间距差不多也是一埃或者更少,它们放射出X射线。
They took a crystal, this is a single crystal of nickel that has regular planes of atoms, and those planes are spaced on the order of an angstrom or less apart, and they irradiated this with x-rays.
他们只是想通过在砷化镓晶体上钻一些有着细心安排间距的小孔来制造波导(一种能令光传播到特定方向的结构)。
They wanted to build a waveguide, a structure designed to send light in a particular direction, by drilling carefully spaced holes in a gallium arsenide crystal.
They took a crystal, this is a single crystal of nickel that has regular planes of atoms, and those planes are spaced on the order of an angstrom or less apart, and they irradiated this with x-rays.
他们取了个晶体,一个具有规则原子平面的,镍晶体,这些面间距差不多也是一埃或者更少,它们放射出X射线。
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