Hello,

For a 2d periodic square lattice structure, with lattice constant "a", what is the correct meep k-point list which corresponds to the boundary of the Brillouin zone?

I guessed the following, but wasn't sure about units:
(define k-points (list (vector3 0 0 0)                 ; Gamma
                       (vector3 (/ 0.5 a) 0 0)         ; X
                       (vector3 (/ 0.5 a) (/ 0.5 a) 0) ; M
                       (vector3 0 0 0)))               ; Gamma

Also, a question on run-k-points: the band diagram example wiki states "run-k-points automatically runs harminv, using the frequency range and location taken from the Gaussian source in the sources list."

This implies that only one source can be used. Is it possible to use multiple sources, to really excite all the modes?

Best Regards,
Matt

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