We integrate Waterman-Rayleigh method (WRM),Fourier Model method (FMM),and C Method properly into our new method-WFCM,which assimilates their advantages to operate multilayer-coated gratings.

• 理论上将Waterman -Rayleigh方法 (WRM) ,傅立叶模方法 (FMM)和坐标变换法 (CM)巧妙结合 ,吸收了三者各自处理多分层光栅的优点 ,摒弃了各自的缺点 ,简化了理论推导。