On Aug 5, 2008, at 5:04 AM, majid sodagar wrote: > I try to find the Band Structure for a simple air hole triangular slab > using FDTD analysis with the aid of Meep c++ interface. I am to get > the bands like those illustrated in your book "Modeling the Flow of > Light chapter 8 figure 2".Did these bands generate using FDTD Method?
No, those were calculated in MPB. Note that computing the band diagram of a triangular lattice is rather tricky in Meep because Meep only supports rectangular unit cells. To simulate a triangular lattice in Meep you have to use a supercell, and that causes the band diagram to be folded somewhat. There are ways to "unfold" the band diagram using multiple sources and/or multiple observation points and looking at the relative phases, which have been discussed before on this list. However, it's much easier just to use MPB when it is applicable (as it is here). Regards, Steven G. Johnson _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
