Mixed metallic photonic band-gap material and Bragg mirror

Metallic photonic band-gap materials have been widely studied either theoretically or experimentally. We consider the possibility to mix a metallic photonic band-gap material (MPBG) composed by a square lattice of metallic wires with a Bragg mirror. The mixed structure is elaborated taking into account the characteristics of both structures isolated. On one hand, this study presents interesting results on mixed PBG designed in an easy way. On the other hand, it also brings precious information to realize MPBG by multiple layer technology. First, a review of MPBG and Bragg mirrors is presented. Then, both structures are dimensioned in order to suppress the authorized band of the MPBG. Experimental and numerical results of the mixed structure are presented. Finally, the study is extended to different other mixed structures composed by MPBG and 2D dielectric photonic crystals or MPBG composed by continuous wires and discontinuous wires. Superimposition of band-gaps and propagation bands of the mixed structure are also studied.