采用矢量理论处理了多台阶位相光栅的衍射问题。
A vector theory for diffraction of multi step phase grating is presented.
由于光栅引起的极化噪声与光栅的衍射效率有关。
The Polarization noise caused by gratings and Polarizers has been computed and mea- sured.
运用严格的光栅衍射耦合波理论分析光栅的衍射特性，发现该方案不会引入相位畸变。
The rigorous coupled-wave theory is used to analyze the characteristics of grating diffraction, and the results indicate that this method produces no phase distortion.
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