rcwa计算一维情况下，tm,te波入射下的矩形光栅的衍射效率(it's used for calculationg the diffraction efficiency of 1-d rectangular gratings on TE or TM incidence)

RCWA计算一维光栅TE,TM透射率、反射率以及电场程序(RCWA calculates 1D grating TE, TM transmittance, reflectance and electric field program)