Dear meep users, developers, Prof. Johnson, I am trying to repeat the results of this paper: http://apl.aip.org/resource/1/applab/v88/i4/p041112_s1?isAuthorized=no
I started without symmetries and I got a diverging field-probe in the center. Then I tried reducing Courant factor and increasing the cut-off parameter for source, as suggested in previous posts. It kept diverging. Only turning eps-averaging off, it seems to work, but in this case I am not confident the accuracy will be enough. What could I do, apart from using symmetries, to avoid a huge mesh? Finally, a few colleagues reckon that using 16 points/period is enough even in those fine-tuning settings, provided that an averaging procedure is made. Sure it depends on the smartness of the averaging, but what do you think about that? Thank you. Regards.
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