这方面,CODE V 确实比ZEMAX 强一些: ;7H^;+P
Scalar Diffraction Efficiency Calculations %AWc`D
CODE V estimates the scalar diffraction efficiency, or the amount of energy going into a given diffracted 4HGS
order, for a number of blazed grating structures: kinoform, stepapproximation to a kinoform, or sinusoid. The 8=0I4\
grating structure determines only the diffraction efficiency of the rays; the direction and optical path lengths 1O,8=,K2a
of the rays are determined by the grating order and local grating spacing. For more details about how the Z^_zcH'
diffraction efficiency is calculated for each of the blazed grating structures, see “Scalar Diffraction Efficiency %S$$*|_G
Calculations” on page 4-116.