Sensitivity enhancement of SPR sensor assisted by Ag, TiO2 and BP for glucose and hemoglobin detection: numerical analysis.

This work aims to investigate the problem glucose and hemoglobin detection in blood samples and other liquids, by using a novel SPR sensors. Our designs is based on Kretschmann configuration, incorporating multi-layers of silver (Ag), titanium dioxide (TiO2), black phosphorus (BP) and gold (Au). Simulations based on transfer matrix method were carried out to compute reflectance of each device. The Impact of Ag, BP and TiO2 on the sensitivity performance are demonstrated. The maximum sensitivity attained is 682.34 deg/RIU with other performance parameters computed, minimum reflection (Rmin) of 0.14 % , detection accuracy of 0.290 deg−1, and quality factor of 171.698 RIU−1. Our proposed devices are expected to plays an active role for recognizing biological or chemical entities in liquids. Numerical results obtained in this paper exhibited high sensitivity in comparison with previously reported studies. [ABSTRACT FROM AUTHOR]