I want to extract a Transmission or Reflection Curve vs. Wavelength or Freq. for an specified Photonic Crystal Geometry in order to finding its Band Gap in a time domain calculation.
I think, should take FFT from E-field components, but How?
also I used CST MWS ver 5.1.1 to simulate my Ph.Cry. but I could not find any link or option to achieving T or R characteristic curve in this software, Altough here is an example of it: