Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Calculate phase of the field › Reply To: Calculate phase of the field

Hello Amrita

I want to propagate results using scalar diffraction theory and in the scalar diffraction theoey, one assume field of all the directions are same and use only one direction vector information. However, the Lumerical simulation results come out in vector form with different each other, so I would like to convert them to scalar form. I can calculate the magnitude of the entire field, but I don't know how to calculate the phase. As in the answer, if you use the phase of a field in the dominant direction, there is an illumination angle that produces similar values in all x, y, and z directions, making it difficult to use. Is there any other method or formula information that might be helpful in converting the results?