On May 2, 2008, at 8:25 AM, 조환희 wrote: > > I want to get the energy flux in dielectric medium about different > wavelength > So I use ‘flux-in-box’ to get the poynting vector integral > results.
A vastly more efficient technique would be to use the dft-flux feature to get the Fourier-transformed flux of a pulse, which will give you all your frequencies at once. > For example, if I put the wavelength 0.44, the integral results have > ‘0.01 – 0.02’ range > But, if I put the wavelength 0.52, the integral results have ‘2 – > 2.5’ range. I haven't looked closely at your structure, but you have some kind of multilayer inhomogeneous material. These kinds of structures can indeed have huge variations in the local density of states from one wavelength to the next. Anyway, it will probably be easier to see what is going on when you switch to using a dft-flux plane and look at a whole spectrum at once. Then I'm guessing you will see a bunch of resonant peaks of some sort. Regards, Steven G. Johnson _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
