> On Jul 27, 2017, at 4:40 PM, Chris Flower <cflow...@gmail.com> wrote:
> I'm interested in doing bandstructure calculations for a photonic crystal of 
> two different lattice structures. For instance, imagine (in 2D) a lattice of 
> rods of radius R1 for all lattice sites with y>0, and radius R2 for all 
> lattice sites with y<0. (With R1 != R2 of course.)
> In my mind, this would require simulating a 1D lattice, where the unit cell 
> is infinite in the y direction, periodic in x. This is quite similar to 
> previous discussions on mpb-discuss about simulating bragg reflectors. The 
> main difference with the bragg reflector case is that there is no internal 
> "structure" in the y direction in the unit cell, aka it is uniform in y.
> Is a structure like this possible to create in MPB? Please let me know if my 
> description is unclear at all. 

MPB could calculate things like surface states localized at the interface (via 
a supercell calculation).    It can't calculate things like reflection 
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