根据傅立叶光学理论从光栅的衍射频谱中可以反推光栅本身的多种信息，包括其形貌特征。
A lot of grating messages including its profile can be derived from diffraction spectrum of grating according to Fourier optical theory.
因此液晶光栅的这种光电特性在衍射光学、光电开关、光束偏转控制等许多领域具有广泛的应用前景。
So liquid crystal grating is used in extensive field such as diffraction optics, photoelectric switch, deflexion controlling of light beam.
在现代光学理论及应用中，经常要讨论周期结构介质中的散射问题，其中周期结构通常被称为衍射光栅。
The scattering problem in periodic structural mediums often discussed in the theory and applications of modern micro-optics, where periodic structural mediums are often called diffraction gratings.
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