Hi, thanks to Nizamov Shawkat I corrected the polarizability definition so that its syntax is similar to the permittivity definition. However the structure still behaves as dielectric. I tried many combinations of values and I am clueless now.
My (working but "nonmetallic") code is at http://fzu.cz/~dominecf/phd_notes/python_meep_problem2.py and its animated output is at http://fzu.cz/~dominecf/phd_notes/ex_YZ.gif. Can anybody send me any MEEP code that shows an apparent metallic interface with evanescent waves, please? (python-meep code particularly welcome.) If you point me to some mistake, I will be happy as well. Thanks! Filip 2012/2/14, Filip Dominec <[email protected]>: > Can anybody point me to a minimum working example of simulating some > metal structure in 3D using python-meep, please? > > The frequency lies around 1 THz, so I expect the gold fishnet is well > described by its conductivity. (For optical frequencies, there is a > nice guide at > http://msdresearch.blogspot.com/2012/02/understanding-meeps-dispersive-media.html). > > Therefore, I defined conductivity using the code from here: > https://lists.launchpad.net/python-meep/msg00040.html . > I can create a stack+polygon of material and run the simulation, but > the waves always propagate in the material without any exponential > decay, which I interpret as that the conductivity does not apply to > anything. > > I can attach the 5 kB source upon request. > Thank you in advance, > Filip > _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
