Photonic bands in periodically modulated dielectric

We have studied about photonic bands in periodically modulated dielectric media. We have predicted that metallophotonic wave guide networks where wave guides are joined together to form a network structure and realized the tight binding photonic bands through an unsuspected zero point localized photonic states. The network has been taken to be surrounded by a material into which light can not penetrate, so that the light is confined inside the network. We have shown that a Kogome network accommodates flat bands with unusually small group velocities. Other features problems include the detailed study of loss associated with metals for metallophotonic wave guide networks in an optical regime. It was found that material is a metal for sufficiently smaller frequency than the plasma frequency such as in micro wave regime. Networks of line defect wave guide in photonic crystals may be another possibility.