SENSITIVITY ENHANCEMENT OF SURFACE PLASMON RESONANCE SENSOR WITH 2D MATERIAL COVERED NOBLE AND MAGNETIC MATERIAL (NI)

Abstract

In this paper, surface plasmon resonance (SPR) sensor on 2D materials such as MoS2 and graphene on Au and magnetic material Ni in Kretschmann configuration is analyzed using transfer matrix method. Here we noted that by sandwiching the MoS2 layer between the Au and Ni film and adding graphene over Ni film improved the sensitivity as high as 229°/RIU. We also noted that the sensitivity of the proposed sensor changes with the addition of no. of layers of graphene and MoS2. We expect that such a high sensitivity SPR sensor could find optional application in chemical examination, medical diagnostic and biological detections.