Photonic band gap of a graphene-embedded quarter-wave stack
Abstract
Here, we present a mechanism for tailoring the photonic band structure of a quarter-wave stack without changing its physical periods by embedding conductive sheets. Graphene is utilized and studied as a realistic, two-dimensional conductive sheet. In a graphene-embedded quarter-wave stack, the synergic actions of Bragg scattering and graphene conductance contributions open photonic gaps at the center of the reduced Brillouin zone, that nonexistent in conventional quarter-wave stacks. Such photonic gaps show giant, loss-independent density of optical states at the fixed lower-gap-edges, of even-multiple characteristic frequency of the quarter-wave stack. The novel conductive sheets induced photonic gaps provide a new platform for the enhancement of light-matter interactions.
Keywords
Cite
@article{arxiv.1311.7037,
title = {Photonic band gap of a graphene-embedded quarter-wave stack},
author = {Yuancheng Fan and Zeyong Wei and Hongqiang Li and Hong Chen and Costas M. Soukoulis},
journal= {arXiv preprint arXiv:1311.7037},
year = {2014}
}
Comments
5 pages, 5 figures, accepted for publication in Phys. Rev. B