Hi, assuming you are able to compute a time-domain simulation of the metamaterial unit cell, there should be no big problem to 1) resolve the resonance frequencies of each mode, then to 2) switch to a narrow-band source with the actual frequency of the mode you are interested in, 3) record the electric field in the volume just after the source terminates, and to 4) resolve the charge density as the divergence of the electric field vector (vector processing and visualisation is possible, e.g., with Paraview).
It should typically detect sharp peaks at metallic edges and corners, while the Mie resonances in dielectric resonators should be relatively weaker. For ordinary metamaterial designs, one gains some intuition about this quite fast. I do not think there would be any challenging science in solving Maxwell equations for a metamaterial unit cell. Regards Filip 2016-10-26 5:51 GMT+02:00, Heligman, Daniel M. <heligma...@buckeyemail.osu.edu>: > Hi, > > > I was wondering if there is a way to find the charge density or near-fields > in metamaterials from a simulation. I am trying to find the charge density > at the resonant frequency. > > > Best, > > Daniel Heligman > _______________________________________________ meep-discuss mailing list meep-discuss@ab-initio.mit.edu http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
