Re: Interpretation of Hfield 1st and 2nd band with h5topng

On Wed, 23 Aug 2006, F.S.F. Brossard wrote:
> Below is a simple test to view the z-component of the H field and 
> magnetic energy density in a triangular lattice of air-holes. I have 
> attached the pics for the first and second band. This looks a bit odd, 
> should the field antinodes not be located in the dielectric for the 
> first band? it almost looks like the opposite of what we would expect 
> (first and second band). I am sure this must have been discussed 
> elsewhere but couldn't find this particular topic.

Looks right to me.  Remember, the variational principle tells you that the 
*electric* field energy tries to be concentrated in the high dielectric 
for the lowest bands, not the *magnetic* field energy.