Srivastava, Sanjay Kumar2023-03-142023-03-142015-12-31http://localhost:8080/xmlui/handle/123456789/109Major Research ProjectIn this work, a highly sensitive surface plasmon resonance (SPR) biosensor with Kretschmann confguration having alternate layers, prism/zinc oxide/silver/gold/graphene/biomolecules (ss-DNA) has been presented. The effect of zinc oxide layer thickness on the sensitivity of SPR biosensor has also been analyzed. From the analysis, it is found that the sensitivity increases significantly by increasing the thickness of zinc oxide layer. The sensitivity of the proposed SPR biosensor has been demonstrated for a number of design parameters such as gold layer thickness, number of graphene layer, refractive index of biomolecules and the thickness of biomolecules layer. SPR biosensor with optimized geometry has greater sensitivity (66 deg/RIU) than the conventional (52 deg/RIU) as well as other graphene based (53.2 deg/RIU) SPR biosensor.en-USPhotonic crystal structureOptical filterTechnical Report