Investigation on band-gaps of 1D space-varying plasma photonic crystal

By using the modified finite-difference time-domain (FDTD) method of magnetized plasma, the characteristics of the band gaps about the 1D space-varying magnetized and non magnetized plasma photonic crystals (PPC) are studied. Taking the differential Gaussian pulse as the excitation source, the influences of band gaps which the plasma frequency varies with the space are discussed in the cases of vertical incidence and oblique incidence. The results show that the control of band gaps can be achieved by changing the plasma frequency and the incident angle.