Comparison of two types of graphene coated fiber optic SPR biosensors

Abstract

In the present paper, surface plasmon resonance based two graphene coated fiber optic biosensors are analyzed using a four layer model. Graphene is used as third layer of a four layer model. Gold or silver is used as second layer and graphene is coated around the silver or gold. A theoretical study has been carried out for two sensors using gold and silver. Two biosensors have been studied separately and then a comparison has been made. Sensitivity has been studied for different number of graphene layers.