Coupled-resonator-induced reflection in photonic-crystal waveguide structures
Abstract
We study the resonant transmission of light in a coupled-resonator optical waveguide interacting with two nearly identical side cavities. We reveal and describe a novel effect of the coupled-resonator-induced reflection (CRIR) characterized by a very high and easily tunable quality factor of the reflection line, for the case of the inter-site coupling between the cavities and the waveguide. This effect differs sharply from the coupled-resonator-induced transparency (CRIT) -- an all-optical analogue of the electromagnetically-induced transparency -- which has recently been studied theoretically and observed experimentally for the structures based on micro-ring resonators and photonic crystal cavities. Both CRIR and CRIT effects have the same physical origin which can be attributed to the Fano-Feshbach resonances in the systems exhibiting more than one resonance. We discuss the applicability of the novel CRIR effect to the control of the slow-light propagation and low-threshold all-optical switching.
Cite
@article{arxiv.0804.4140,
title = {Coupled-resonator-induced reflection in photonic-crystal waveguide structures},
author = {Sergei F. Mingaleev and Andrey E. Miroshnichenko and Yuri S. Kivshar},
journal= {arXiv preprint arXiv:0804.4140},
year = {2016}
}
Comments
LaTeX, 11 pages, 5 figures