光电子快报(英文版), 2012, 8 (1): 25, Published Online: Jul. 12, 2017
Theoretical study on modulating group velocity of light in photonic crystal coupled cavity optical waveguide
Abstract
We present a novel mechanism,which is formed by periodically changing the radii of dielectric rods in the middle row of a photonic crystal, to control and stop light. Using the Bloch theory and coupled-mode theory, the dispersion characteristic of such a photonic crystal coupled cavity optical waveguide is obtained. We also theoretically demonstrate that the group velocity of a light pulse in this system can be modulated by dynamically changing the refractive index or radii of the selected dielectric rods, and the light stopping can be achieved.
LU Ying, HUANG Xiao-hui, FU Xiang-yong, CHU Dan-ping, YAO Jian-quan. Theoretical study on modulating group velocity of light in photonic crystal coupled cavity optical waveguide[J]. 光电子快报(英文版), 2012, 8(1): 25.