sensors based on surface plasmon resonance due to high accuracy measurement of chemical and biological parameters are considered by many scientists recently. In this paper, the effect of adding graphene to sensors based on surface plasmon resonance is numerically simulated and investigated by using Fresnel reflection coefficient. For accuracy investigation of performance of these sensors, surface plasmon resonance curve in different cases that is plotted versus different number of graphene layers, different thickness of gold and silica and 2S2G prisms. Simulation results show that adding graphene to sensors causes the increase of sensitivity.
 

Keywords: sensor, graphene, Fresnel coefficient, surface plasmon resonance

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