Figure 5
(a) Comparison between target spectral lineshape, predicted spectrum through DNN, and FDTD simulation results from the predicted geometric parameters according to the two target spectra showing the lowest loss from Table 1 (T3 and T7). (b) For T3 and T7, variations in reflected structural color appearing when glucose level is changed by 5 g/100 ml from 0 to 40. (c) Graph showing the calculated ΔE00 corresponding to the color difference shown in (b). Inset represents calculated ΔE00 when the glucose level is changed from 5 to 8 by 1 g/100 ml in order to determine resolution limit of the proposed colorimetric sensor.
