这方面,CODE V 确实比ZEMAX 强一些: J^gElp
Scalar Diffraction Efficiency Calculations ,LodP%%UV
CODE V estimates the scalar diffraction efficiency, or the amount of energy going into a given diffracted UlQS]f~
order, for a number of blazed grating structures: kinoform, stepapproximation to a kinoform, or sinusoid. The BI|YaZa+p
grating structure determines only the diffraction efficiency of the rays; the direction and optical path lengths k];NTALOG
of the rays are determined by the grating order and local grating spacing. For more details about how the FMEW['
diffraction efficiency is calculated for each of the blazed grating structures, see “Scalar Diffraction Efficiency U#6<80Ke
Calculations” on page 4-116.