I am interested in calculating the band diagrams of a 2D plasmonic lattice. as usual I am using the dipole cloud combined with the proper sweep along edges of IRBZ. Although the final result after processing gives me an idea about the map however as you can see a lot is going on there. Some of the straight lines with linear dispersion could be recognized as folded light lines but there are some discontinuities which I am not sure about. (e.g. please check the X-point)
Your feedback to resolve the issue would be really appreciated.
Thank you!plasmonic_lattice_alumina_Lumerical.fsp (286.1 KB)