Experiments with phase-delay method for slow light in photonic crystal waveguide

In this paper, we report both of the simulation results and experimental measurements of the group index of a photonic crystal waveguide based on silicon-on-insulator slab. In the numerical simulations, the band diagram and the group index versus the wavelength are calculated. The experimental results demonstrate that the group index curve measured with the phase-delay method has the exact same trend with that in the simulations.