PROGRESS ON FABRICATION OF THREE-DIMENSIONAL PHOTONIC CRYSTALS BY HOLOGRAPHIC LITHOGRAPHY

Three-dimensional photonic crystals,known as band gap materials,have broad potential applications in the area of optical devices,biochemical sensors,information transmission and storage,etc.Holographic lithography can produce photonic crystals with a strict uniformity and defect-free structure by using a simple setup through low cost process.Theoretical and experimental research progress in fabrication of three-dimensional photonic crystals by holographic lithography method was viewed.Representative examples of every method are given,and their advantages and shortcomings are evaluated.