Dear meep users and developers, I wrote to this list several days ago about a problem in dealing with cavities like those of http://link.aip.org/link/APPLAB/v88/i4/p041112/s1&Agg=doi
Specifically, type A3 of that paper. The simulation diverges, as I can realize by probing he Hz field at its center. Using z-reflection symmetry, I noticed divergence does not appear with a lattice 32x25sqrt(3) large, but occurs with a larger one. I tried reducing Courant factor (up to 0.2), and adjusting subpixel-tol to 1e-8 or 1e-2, and finally increasing the cutoff up to 12.0. No solution worked, only switching eps-averaging off. I hope this could help to identify the bug or to suggest a better solution. Thank you. Yours Andrea.
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