Operating characteristics of an optical filter in metallic photonic bandgap materials

Abstract

In this Letter a new analysis of an optical filter using a metallic photonic bandgap material on the microscopic scale is reported. The proposed filter is capable of working over a wide range of the electromagnetic spectrum and the idea is based on the famous Kronig-Penny model in the solid state. The periodic structure consisting of different conducting materials and dielectrics (air) are considered. The structure is also able to pass the light emitted by a He-Ne laser source by choosing the appropriate values of the controlling parameters, and thus this may act as an efficient monochromator.