Self-collimation effect in hexagon-hole type photonic crystal slabs

Abstract

This paper extends prior analysis of self-collimation effect in two dimensional photonic crystal structure patterned with a triangular lattice having hexagonal holes [1]. The equifrequency contours analysis is performed in order to determine the self-collimation effect frequency range for this structure. The routing of two self-collimated Gaussian beams travelling through a hexagonal photonic crystal, on the same optical layer is demonstrated. Using the unique advantage of allowing selfcollimated beams to cross each other without coupling, one can devise structureless interconnects for photonic integrated circuits [2].