矩形光栅的衍射特性  

DIFFRACTION CHARACTERISTICS OF RECTANGULAR SURFACE RELIEF GRATING

作　　者：王鹏[1] 徐毓光[1] 余勤跃[1] 顾铮先[1] 赖芳良[1] 

机构地区：[1]中国科学院上海光学精密机械研究所

出　　处：《光子学报》1999年第5期446-450,共5页Acta Photonica Sinica

摘　　要：本文采用严格的一阶耦合波理论，对矩形光栅的衍射特性进行了分析，给出了ＴＥ模和ＴＭ模同时具有很高的衍射效率时的光栅结构．计算表明：只有在满足Ｂｒａｇｇ衍射条件时，ＴＥ模和ＴＭ模才能达到峰值衍射效率．为了验证理论与编制程序的正确性。The characteristics of rectangular surface relief grating are analyzed with rigorous one order coupled wave theory.The grating structures are pointed out when both TE mode and TM mode can achieve high diffraction efficiency.Calculation proved:TE mode and TM mode can achieve high diffraction efficiency only when Bragg diffraction occurs.In order to verify the theory and program,the calculated results are compared to the other experiment results in the reference.

关 键 词：光栅 耦合波理论 光栅周期 衍射效率 矩形 

分 类 号：TH741.601[机械工程—光学工程]