Figure 1From: Diffractive properties of imaginary-part photonic crystal slabThe structure of 2D IPPC slab. (a) Circular rods in square lattice on glass substrate. (b) Schematic and plan view of the structure, showing the polar angle θand the azimuth angle ϕof incident light and the high symmetry along Γ−Xand Γ−Mdirections.Back to article page