I am trying to obtain extinction, scattering and absorption cross-sections for a periodic array of metal nanorings.
In the mie scattering example, there are two analysis monitors, ‘Total’ and ‘scat’ enclosing the metal structure, and the whole system is inside the FDTD simulation region. And the TFSF source is sandiwiched between the ‘Total’ and ‘scat’ monitors.
For a periodic array, I changed the FDTD region to include only the unit cell and changed the input source to a plane wave source, but here is where I get confused with the set up for the monitors. How do I construct the monitors in this case to obtain the scattering and absorption cross-sections if the FDTD region is not enclosing the whole system but just the unit cell? Could you have to look at my .fsp file and explain how I should modify it to make it work?
Sorry for the inconvenience,
MNR_Array_extinction.fsp (318.1 KB)