I attempting to measure the transmission, where the source is plane wave at the bottom of the unit cell. Placing the monitor above the top of the cell I get a transmission greater 1. I have changed the mesh size and the range of wavelengths tested but no luck.
I read about re-normalizing the transmission and I would like to try but I do not know how. If someone can tell me how to re-normalize or why I am measuring transmission over 1 I would appreciate it.