On Tue, 17 Oct 2006, matt wrote:
Of course, a one to one column comparison doesn't make sense here. In all likelyhood, the fifth C++ frequency is the same as the fourth C++ frequency, but this duplicate didn't pop up with the libctl version. I think the only fix for this is throwing away "duplicate" points based on some threshold scheme, but then you risk losing legitimately distinct points. Perhaps it's less of an issue observed over the entire band diagram.
This is a general difficulty with peak identification, which is not bulletproof at identifying closely-spaced frequencies. Spurious frequencies (if indeed it is spurious in this case) aren't so much of a problem when you plot the whole band diagram, because spurious frequencies are easily identifiable as isolated points.
You can also increase the run time to get better frequency resolution, or use a narrower band source around the eigenfrequencies of interest.
Steven _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
