All, I am new to Maxwell, but not to other packages like ANSYS Workbench. I am trying to teach myself this software, but can anybody help me with the following: 1) How to construct proper Periodic boundary conditions, so that only 1 grating period needs to be modeled. I am looking at a simple, binary grating. 2) From here, how can I ensure that my incident radiation is normal to the surface (fins) of the grating? I am still learning, so I am sorry if this question seems obvious. 3) Can I pull off field profiles at certain frequencies from a frequency sweep?> Any help is appreciated!! THank you! If you could include a quick example (but not necessarily hand me the full solution!!!) I would be very thankful.