Table 3 The structural details, Rmin, FWHM, and sensitivity of the conventional multilayer designs, concerning the variation in the refractive index of the sensing medium from 1.33 to 1.34.
Design | Fig | Thickness (nm) | \({\text{S}}=\frac{x{\Delta \theta }}{{\Delta n}(0.01)}\left(\circ/\text{RIU}\right)\) | ns.m = 1.33 | ns.m = 1.34 | ||
|---|---|---|---|---|---|---|---|
Rmin | FWHM | Rmin | FWHM | ||||
Prism/Ag/S.m | 3a 3b 3c | dAg = 45 dAg = 50 dAg = 55 | 115.55 117.06 120.06 | 0.186 0.054 0 | 1.410 1.050 0.795 | 0.187 0.054 0.004 | 1.515 1.255 0.870 |
Prism/Ag(55 nm)/dielectric material (2 nm)/S.m | 4a 4b 4c 4d | ITO Al2O3 BaTiO3 BiFeO3 | 120.78 120.15 125.47 132.12 | 0 0 0 0 | 0.882 0.977 0.955 1.035 | 0 0 0 0 | 0.946 0.940 1.029 1.1084 |
Prism/Ag(55 nm)/BiFeO3/S.m | 4e 4f | dBi = 4 dBi = 8 | 147.63 259.88 | 0 0.005 | 1.347 2.726 | 0 0.022 | 1.469 3.165 |
Prism/Ag(55 nm)/BiFeO3(8 nm)/Ag1/S.m | 5a 5b 5c | dAg1 = 8 dAg1 = 4 dAg1 = 0.5 | 148.05 171.91 241.66 | 0.156 0.053 0.007 | 1.096 1.570 2.49 | 0.162 0.061 0.020 | 1.201 1.752 2.919 |
