Band Gap Properties of 1-D Photonic Crystal

Using transfer matrix method,we calculated and analyzed the relationships between 1-D photonic crystal transmission spectrum and each of center wavelength and the ratio of the refractive indices of two dielectric materials of 1-D photonic crystal when the incidence angle was zero and the optical thicknesses of two dielectric materials were λ0/4,where λ0 is center wavelength.We also gained a method for calculating optical thicknesses and refractive indices of two mediums of 1-D photonic crystal when the band gap range of vertical incident light is certain.