Dear Meep users and developers, I am trying to compute the dispersion curve/band diagram of a PhC W1.2 waveguide. My purpose is to compare this results to those provided by GME program by Andreani's group.
Then I borrowed the structure of the example of band calculations from the tutorial and use (run-k-points ...) Say X the direction of the waveguide, I set up a domain one period long in X and put PML in Z and Y. It works, despite it makes a sort of cluster of points in the upper part (I presume it is a matter of harminv numerical precision and pulse width). Then, in order to speed up the calculation, I'd like to use symmetry in Z. (set! symmetries (list (make mirror-sym (direction Z) (phase -1)))) should correspond to the TE modes (Hz). This calculation outputs all zeros. I tried both parities (should I be mistaken), but I get the same result. I moved the source above the Z=0 plane: nothing to do. Has someone faced the same issue? Thank you. -- Ing. Andrea Armaroli Ph.D. Optics & Electromagnetics University of Ferrara Engineering Department A-building - Room 301 (3rd floor) via G. Saragat, 1, Ferrara 44122 Italy phone: +39 0532 97 4986 e-mail: [email protected]
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