Tailoring the photonic band splitting in metallodielectric photonic crystal superlattices

We experimentally and theoretically investigate the influence of a structured supercell on the band splitting of one-dimensional metallodielectric photonic crystal superlattices. We show that the splitting of the photonic bands can be modified by periodic structuring of the elementary unit cell of the photonic crystal. For our investigationwe constructed metallic photonic crystal superlattices by creating supercells from standard photonic crystal building blocks and arranged them at certain distances apart. The optical properties were obtained by conventional angle-resolved white-light transmission measurements.