On Apr 18, 2008, at 11:25 AM, andika asyuda wrote: > I want to ask about how to define area for flux computation. In > examples, I see tat the length o is twice the wide of wave guide > and the wide is 0. Why is it like that.. Now I am doing this kind of > work for photonic crystal . This is my code
The flux region should be wide enough to catch all of the power from the waveguide (modes), which means it should be a bit wider than the waveguide in order to capture the evanescent tails. (It shouldn't be too wide, however, because you don't want to catch too much radiated power that is not propagating in the waveguide.) (If the waveguide is single-mode and you just want the transmission spectra, then actually you don't need to catch all of the power. In that case you just need a single point inside the waveguide, since for a single-mode waveguide the field everywhere is proportional to the field at a single point.) Regards, Steven G. Johnson _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
