Zero-bandwidth mode in a split-ring-resonator-loaded one-dimensional photonic crystal

Abstract

We demonstrate that the resonance of metallic split-ring resonators can interact with Bragg phase interference effects in a surrounding one-dimensional photonic crystal in such a way that a zero-bandwidth mode arises within the photonic band gap of the crystal. The band can also be designed to exhibit forward or backward slow-light propagation. We present a very simple model to explain these phenomena and verify the results with numerical simulations. The dynamic tuning of the structure has potential for stopping light or time-reversal applications.