Dear Meep users, I have a 3d structure that I simulate which has a mirror symmetry in the y=0-plane, so I want to explore this to speed up things. While reading up on this (http://ab-initio.mit.edu/wiki/index.php/Meep_Tutorial/Band_diagram% 2C_resonant_modes%2C_and_transmission_in_a_holey_waveguide) I realise I do not understand what is meant with this. On the homepage it is said, regarding the example structure, that: "The structure has mirror symmetry planes through the x and y axes. The source breaks the mirror symmetry through the y axis, but we still have odd mirror symmetry through the x axis"
What I do not understand is why the symmetry is odd. It is not the case that eps(x, y) = -eps(x, -y) (eps is an odd function in y). Further E is a vector, so this quantity does not behave as a pseudovector under reflection, or? I have read the section in Jacksson about this, and I think I understand what he says, but it does not help me. Anyone can point out a source of info on this? Best regards, Robert Rehammar -- Robert Rehammar PhD-Student Applied Physics, Chalmers University of Technology Department of Physics, Göteborg University SE-421 96 Göteborg Sweden Tel +46 (0)31 772 3156 Fax +46 (0)31 416 984 Cel +46 (0)738 328834 Web fy.chalmers.se/~e9ravn _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
