Jannati Nabiha Nur, Kamrun Nahar Shushama, Fairuj Asrafy, Mohammad Hasibul Hasan Hasib, Mohammad Abdul Goffar Khan
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Sensitivity Enhancement of Surface Plasmon Resonance Biosensor using Black Phosphorus and WSe2
In this paper, Kretschmann configuring SPR biosensor has been proposed using simulation based numerical and graphical demonstration. Five layers of biosensor model is submitted consisting of Silver (Ag), Black phosphorus (BP) and two dimensional TMDC Tungsten Diselenide (WSe2) layers. Angular modulation is adapted to evaluate the results by monochromatic P polarized incident light with 633nm wavelength. Highest sensitivity of 367.8571 °/RIU is achieved by using three layers of BP along with only one layer of WSe2. Layer optimization is carried out by changing the minimum reflectance, change in resonance angle and sensitivity. This recommended biosensor model gives the desirable maximum change in sensitivity while changing the refractive index of the sensing medium.
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