Dear all, I have seen that it is possible to input a dispersive complex permittivity for a material by using for example DrudeSusceptibility or LorentzianSusceptibility. Is it possible to do the same for conductivity models such as the ones that are commonly used for 2D materials? I am also interested in implementing this for anisotropic 2D materials. Using an effective permittivity to simulate graphene plasmons seems to require extremely high discretization given that non-uniform grid is not available. The fact that plasmons in graphene are in the IR range make this even more difficult. So I was wondering if this can be avoided. Thank you for your time. Best wishes Nikolaos
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