Abstract
In the present paper, we examine a highly sensitive surface plasmon resonance (SPR) sensor structure based on angular interrogation. Our simulations are based on transfer matrix method (TMM) and a monochromatic light of wavelength 633 nm has been used. The SPR configuration designed by the CaF2 Prism-Ag-Fe2O3–Ni-BlueP/MoSe2-Sensing medium is theoretically analyzed to enhance the performance of the sensor. A monolayer of Fe2O3 sandwiched among the Ag, Ni and BlueP/MoSe2 layers provides the high sensitivity of 3950RIU−1 for the proposed SPR sensor when the refractive index of the sensing medium is 1.330. The proposed SPR sensor has times improved angular sensitivity than a conventional SPR sensor. Monolayers of Ni and BlueP/MoSe2 have been used as a bio-compatible reagent to enhance the angular sensitivity of proposed SPR sensor. The proposed SPR sensor has the potential to be used in biosensing applications.
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