High Performance of the Graphene-Coated Bloch Surface Waves Biosensor

Abstract

We propose a finely tuned performance Bloch Surface Waves (BSWs) based biosensor combining the graphene coating and a defective layer X: (X = TiO2, AlAs, GaP ) on the top a photonic structure prism/[TiO2/MgF2]2. The simulation of the performance of the biosensor is carried out considering the effects of refractive index and thickness of a terminate layer X as well as the number of graphene layers. Moreover the figures of merit of the biosensors are compared.