Fig. 3: Refractive Index sensing.
From: A Fabry-Pérot cavity coupled surface plasmon photodiode for electrical biomolecular sensing
a, b Photocurrent as a function of angle in solutions of different glycerol concentration [0%, 10%, 20%, 30%, 40%, 50%] with RI = 1.333, 1.346, 1.359, 1.371, 1.384, 1.397 for silicon sample a and TiO2 sample b. c Photocurrent as a function of time for changing glycerol concentration at the fixed angles indicated by the dashed lines in a, b for Si (blue) and TiO2 (orange). The TiO2 data is multiplied by a factor of 10 for clarity. The upper panel (green) indicates the corresponding glycerol concentration (left axis) and RI (right axis) of the solution. Source data are provided as a Source Data file.
