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In this paper, we use the Bloch theorem and transfer matrix method to calculate the dispersion relation of a ternary 1D photonic crystal with left-handed materials. Then, we obtain the total omnidirectional re∞ection band gaps of this structure. We demonstrate that the omnidirectional re∞ected frequency bands are enlarged in comparison with ordinary materials with positive index of refraction.

PHOTONIC BAND STRUCTURES AND ENHANCEMENT OF OMNIDIRECTIONAL REFLECTION BANDS BY USING A TERNARY 1D PHOTONIC CRYSTAL INCLUDING LEFT-HANDED MATERIALS