Slow light in photonic crystals
In this work we demonstrate an interesting opportunity to decrease drastically the group velocity of light in two-dimensional photonic crystals constructed form materials with large dielectric constant without dispersion (?d?100). The group velocity of light in the crystals can be lowered up to 10?510?4c (c is velocity of light in free space) in a wide range of the Brillouin zone. We propose a simple and general explanation why that should appear in photonic crystals with large dielectric constants.
slow light photonic crystals