Re: PhC from Meep tutorial with MPB

On Sep 15, 2008, at 10:18 AM, Elewout Hallynck wrote:
> . According to Meep, the first TE bandgap should lie between (approx.)
> 0.2 and 0.3 .
> However, when I try to calculate the band structure using MPB, I get  
> the
> following results:

You have to look at the bands lying only underneath the light cone  
only.  MPB won't do this for you -- the "Gap" information it prints  
out is only for overlapping gaps at *all* the k points, which is not  
correct for an index-guided structure like this.  You can compute the  
gap in MPB, of course, but you have to have it compute the bands and  
then compute the gap yourself.

Steven