On Mon, 13 Nov 2006, Changsoon Kim wrote:
I am calculating a band structure for a photonic crystal slab, and the results do not show some of high frequency leaky guided modes. I was wondering whether there is a way to set -Q option for harminv from a *.ctl file.
It is possible, by calling do-harminv directly and passing a different Q_thresh parameter (the default is 50) (see do_harminv in meep.hpp). Or you could edit meep.hpp to change the default Q_thresh parameter for do_harminv.
However, I would be suspicious of Q < 50 modes in general; not only is the lifetime too short to extract them accurately, but even the leaky-mode approximation of the modes as perfectly exponentially decaying begins to break down.
Steven _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
