布拉格衍射不仅对方向有选择性，还对波长有选择性。晶格衍射可根据晶格种类和光源单色性分类。按照晶格分类，一种是单晶的布拉格衍射，一种是多晶的布拉格衍射。
对光栅的布拉格衍射条件以及偏振对二维滤波的影响进行了理论分析。
The Bragg's condition and effect of polarization on performances of the two-dimension filter are also discussed.
介绍了声光衍射的原理，并对布拉格衍射中的声光偏转和声光调制进行了实验研究。
The principle of acoustooptic diffraction was introduced, and the experimental research was carried through about acoustooptic deflexion and modulation of Bragg diffraction.
他指出，由于布拉格衍射效应，在同样具有螺旋结构的胆甾相液晶中也观察到了类似的光子自旋滤波。
He points out that a similar spin-filtering of photons due to Bragg diffraction has been seen in cholesteric liquid crystals, which also have a helical structure.
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