Transmission and absorption properties of two-dimensional metallic photonic-band-gap materials

Using the multiple-scattering method, we study systematically the transmission and absorption properties of two-dimensional (2D) metallic photonic-band-gap (PBG) materials for a wide range of frequency and structure scales by adopting a realistic dielectric constant for metal cylinders. For both S and P waves, analytic expressions for the absorption power of a single metal cylinder under an arbitrary external field have been derived to explain the absorption behaviors of metallic PBG materials in a coherent way. The discussions and conclusions presented here can be generalized to 3D systems as well.