Magneto-optic effects in a nonlinear photonic crystal

The magneto-optic effects on the transmission property in a multilayer structure with an intensity-dependent dielectric constant are studied numerically. The polarization behaviors of the transmission of an electromagnetic field near the edges of the stop gap are emphasized. It is shown that with variation of the input power, due to the multistability, the system can transit between states with different polarizations. With an increasing magneto-optic effect, the feature of polarization depends on whether the Kerr coefficient is positive or negative. The soliton configurations of different components of the electric field are quite different. The resonant transmission results from the coupling between the incoming field and the solitons. The polarization of the soliton is responsible for the polarization of transmissivity. The response of transmissivity to the frequency near the edges of the gap is also investigated.