On November 1, 2004 02:09 pm, Sherif Yehia wrote: > Dear Wien user: > > I would like to ask if one can use Wien2k to > calculate band structure for photonic crystal. You can, of course, calculate the electronic band structure of the photonic crystal. But you cannot calculate the photonic bands. To do that I suggest you look at http://ab-initio.mit.edu/mpb/