Computer-generated holograms for photonic crystal fabrication

Abstract

A novel approach to photonic crystal fabrication is proposed. It is based on the use of computer-generated holograms (CGHs) for photonic crystal structure definition. CGH allows for defining arbitrary structures, perfect or with any type of defect in a single lithographic step. CGH lithography is applicable to both 2D and 3D structures. Furthermore, a CGH can be made reconfigurable if a liquid crystal is used as a hologram medium. Hence, a single device can be used for fabrication of any photonic structure.