Simultaneous Multi-frequency Topological Edge Modes between One-dimensional Photonic Crystals
Mesoscale and Nanoscale Physics
2016-04-05 v2 Optics
Abstract
We show theoretically that, in the limit of weak dispersion, one-dimensional (1D) binary centrosymmetric photonic crystals can support topological edge modes in all photonic band gaps. By analyzing their bulk band topology, these "harmonic" topological edge modes can be designed in a way that they exist at all photonic band gaps opened at the center of the Brillouin Zone, or at all gaps opened at the zone boundaries, or both. The results may suggest a new approach to achieve robust multi-frequency coupled modes for applications in nonlinear photonics, such as frequency up-conversion.
Cite
@article{arxiv.1602.03630,
title = {Simultaneous Multi-frequency Topological Edge Modes between One-dimensional Photonic Crystals},
author = {Ka Hei Choi and C. W. Ling and K. F. Lee and Y. H. Tsang and Kin Hung Fung},
journal= {arXiv preprint arXiv:1602.03630},
year = {2016}
}