Abstract
We analyze the transmission characteristics and dispersion profile of a terahertz (THz) electromagnetic wave propagating inside a 1D dielectric photonic crystal sandwiched by two single atomic graphene sheets. We vary the thickness and number of alternating slabs of the dielectric medium as well as changing the electrical conductivities in the graphene layers and study their effects on the optical bandgap. The simulation result shows that attachment of two single atomic graphene sheets into the system will cause a decrease in the transmitted field although changes in the electrical conductivity will not alter the bandgap since the graphene layer is very thin relative to the dielectric slabs. This feature is in agreement with the results obtained from the dispersion relation curve which is unchanged by varying the electrical conductivity.
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