Table 2.
Summarizes the performance parameters bimetallic layered structures for angular measurement mechanism.
| SPR Measurement Mechanism 1 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Operating point | Silver thickness (d1) nm | Gold thickness (d2) nm | Incident wavelength λ (nm) | Plasmonic angle sinθsp | Min(Rp) | FWHM rad/nm | Sensitivity (S) rad/nm/V | Figure of Merit (FoM) 1/V |
| ‘A’ | 31.0 | 15.0 | 632.8 | 0.9435 | 2.84 × 10−7 | 3.02 × 10−4 | 1.00 × 10−5 | 0.0333 |
| ‘B’ | 25.5 | 20.0 | 632.8 | 0.9464 | 8.33 × 10−8 | 3.50 × 10−4 | 1.06 × 10−5 | 0.0303 |
| ‘C’ | 20.5 | 25.0 | 632.8 | 0.9485 | 1.52 × 10−6 | 3.86 × 10−4 | 1.10 × 10−5 | 0.0285 |
| ‘D’ | 15.8 | 30.0 | 632.8 | 0.9500 | 2.03 × 10−6 | 4.11 × 10−4 | 1.12 × 10−5 | 0.0273 |
| ‘E’ | 38.2 | 15.0 | 632.8 | 0.9509 | 0.1 | 2.11 × 10−4 | 1.03 × 10−5 | 0.0488 |