Hi，

I want to simulate the performance improvement after inserting a metalens in camera lens, similar to the result publish in Nano letters (DOI: 10.1021/acs.nanolett.8b03567).

I want to calculate the focal length shift, focal spot frofile and wavefront aberration function just like this paper. In my case, the grid phase data was generated using matlab and imported to zemax. The wavefront result was improved, but other results seems unchanged. The physical optics propagation result barely changed, I am not sure about the calculation result.