Dependence of the defect mode on the temperature and the angle of incidence in a one-dimensional photonic crystal

In this work, by using the transfer matrix method, it was theoretically studied the dependence on temperature and the angle of incidence of the transmittance spectrum for the TE mode in a defective one-dimensional photonic crystal. We found that there is only one defect mode within the photonic band gap, where the height of the transmittance peak and the position depend on the angle of incidence. By increasing the angle of incidence there is a shift to short wavelengths of the photonic band gap and the defect mode. Additionally, we found that when considering the simultaneous effects of thermal and thermal-optical expansion, the defect mode shows a shift to long wavelengths with the increase in temperature.