Abstract: This paper applies transfer matrix method to calculate transmission coefficient of one-dimensional dual photonic crystal numerically simulating the effects of many factors on the transmission spectrum of one-dimensional dual photonic crystal.The results show that the factors are the refractive index,thick ness,layer number of one-dimensional dual photonic crystal,polarization and incident angle of incident ray.

Key words: one-dimensional dual photonic crystal, transfer matrix method, band gap, transmission spectrum