I would like to calculate extinction cross-section from ‘infinite’ periodic array of metallic nanoparticles that are hexagonally arranged, while using a TFSF source that I have been using for single nanoparticle case.
I tried enclosing one particle in the array and using PBC or Bloch boundary conditions to obtain the extinction cross-section, but the result I get seems identical to the single nanoparticle case I have been doing, so I am not sure if I am doing it correctly. So I tried setting up the mesh in the way shown in the image, and of course I get a strange result. Could you please teach me how to set up the simulation correctly for this? I’ve included the .fsp file.
Hex_arranged_array_example.fsp (511.1 KB)