Low interface reflection of rod-type photonic crystals: a bottom up approach

摘要

We consider coupling between free-space and rod-type photonic crystals using semi-analytic 2D methods, and find that for frequencies in the second and third bands this coupling is almost perfect over a large range of angles. We explain this remarkable property in terms of the scattering resonances of the individual inclusions and then confirm the presence of this effect in fully 3D FDTD calculations.