ONE-DIMENSIONAL PHOTONIC HETEROSTRUCTURE WITH BROADBAND OMNIDIRECTIONAL REFLECTION

In this work we report the modeling of an one-dimensional photonic heterostructure which presents a giant omnidirectional photonic band gap. This omnidirectional reflector is made by the union of lattices with the same filling fraction and index contrast, but with different lattice periods. Using the scalability of the electromagnetic wave equation we present a simple manner to enlarge ---as large as desired--- the omnidirectional mirror. We apply our method to design an omnidirectional reflector for all the visible range.