Photonic Bandgap Properties of Triply Periodic Photonic Crystal Heterostructures

Abstract

The optical transmission of one dimensional photonic crystal(PC) containing TiO2 and SiO2 material with triply-periodical heterostructures was investigated by transfer matrix method.The results show that there are seven photonic band gap(PBG) in the range of 200~2 000 nm in PC,and the band gap width increases with the wavelength.The authors put emphasis on the relationship between the optical transmissionof this kind PCs and incident angle,layers of dielectric,as well as dielectric layer thickness.It is found that the width and position of band gap are sensitive to incident angle and dielectric layer thickness,but not periodic numbers.