Table 3.

Summarizes the performance parameters bimetallic layered structure with d₁ of 31 nm and d₂ of 15 nm for plasmonic wavelength measurement.

SPR Measurement Mechanism 2
Silver thickness (d1) nm	Gold thickness (d2) nm	Plasmonic wavelength λSP (nm)	Incident angle sinθ0	Min(Rp)	FWHM rad/nm	Sensitivity (S) rad/nm/V	Figure of Merit (FoM) 1/V
31.0	15.0	981.4	0.90	2.38 × 10−4	8.37 × 10−4	3.33 × 10−5	0.0397
31.0	15.0	740.7	0.92	4.44 × 10−2	10.21 × 10−4	4.25 × 10−5	0.0416
31.0	15.0	643.9	0.94	4.45 × 10−3	12.39 × 10−4	4.45 × 10−5	0.0347
31.0	15.0	595.2	0.96	4.28 × 10−2	14.85 × 10−4	4.07 × 10−5	0.0274