Now that we have the coefficients for the Binary 2 surface and know the phase profile, we need to calculate the radial coordinates of each 2*m*p diffraction zones to be used for the fabrication. The phase at each diffraction zones will differ exactly by +2*p or -2*p radian from the adjacent zones as shown in figure 13.3 (a).

Run the macro “Phases.zpl” and specify surface #2 when prompted.

The result shows that there are 246 zones with the last zone being at 14.94 mm from the vertex of the surface.



The diagram below illustrates several different possibilities for the DOE surface profile.


Figure 13.9 from Optical System Design