Abstract
In this article, properties of dispersion characteristics and phase index of magnetized one dimensional ferrite photonic crystals are investigated for transverse electric mode when external magnetic field is along the propagation direction. The dispersion relation and phase index equation for electromagnetic wave propagating in the considered structure is obtained by using transfer matrix method. It is found that in this configuration, two Eigen modes viz. LCP and RCP waves are obtained. The effect of external magnetic field, filling factor and normalized parallel wave vector β on dispersion and phase index are investigated. It is found that filling factor, external magnetic field and β have strong influence on the dispersion and phase index for LCP wave. For RCP wave, dispersion and phase index do not show external field dependence. With increase in external magnetic fields, the first order PBGs is shifted towards high frequency domain for LCP wave whereas for RCP wave there is no effect of external magnetic field on dispersion. With increase of β at constant external magnetic field and filling factor, thickness of PBGs increases for both LCP & RCP waves. PBGs occur in the form of lobes and the number of lobes decreases with increase in β values in the same frequency domain. For same f-value, the magnitude of ɸ is lower for LCP wave as compared to RCP wave.
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