Performance parameters evaluation of surface plasmon resonance based fiber optic sensor with different bilayer metals: Theoretical study.

Abstract

Surface plasmon resonance (SPR) based fiber optic sensor with three types of bilayer configurations (silver/gold, copper/gold, and aluminum/gold) is theoretically analyzed. Performance parameters like sensitivity, signal to noise ratio, figure of merit, and resolution are evaluated for each configuration. Signal to noise ratio (SNR), and figure of merit (FOM) are enhanced very well for the selected bilayer configurations as the outer gold layer thickness increased, the sensitivity enhanced also but with small frictions while the resolution has decreased slightly.

Hybrid structure of u bent optical fiber local surface plasmon resonance sensor based on graphene

“…these results agreement with the result in the previous study in reference [5] and [17] With the addition of graphene layer, the SPR spectrum's resonance wavelength will more shift, the RI sensitivity will be improved by using graphene. Beside the sensitivity the FOM (Figure Of Merit) used to evaluate the performance of LSPR sensor, FOM given by the ratio of sensitivity to FWHM (full width at half maximum) [22], Signal to noise ratio (SNR) is the ratio of shift wavelength to FWHM and Resolution is the ratio of minimum spectral resolution to Sensitivity [24]- [26]. The characteristics for the sensor that coated with 30 nm thickness of GNPs and sensor that coated with 30 nm thickness of GNPs + graphene is shown in Table 1.…”

Fabrication of a Chemical Sensor Based on Surface Plasmon Resonance via Plastic Optical Fiber

“…This technique has also a broad spectrum of applications in biology, environment, chemistry, medicine, etc. [3]. The combination of the SPR technique and optical fiber technology has been intensively used for the sensing of various entities such as refractive index of the fluid, film thickness, surface roughness, pH, temperature, as well as levels of urea, glucose, pollutions and different types of gases [4,5].…”

Optical Fiber Biomedical Sensor Based on Surface Plasmon Resonance

“…7, pp: 1650-1656 1651 linked with the cost, the amount of the sample to be sensitive, the sensor size, and its performance properties such as the signal to noise ratio, sensitivity, and resolution etc. [1][2][3]. The optical fiber-based Surface Plasmon Resonance (SPR) detects numerous points of interest; for example, improved and flexible optical structure, advancement of remote detecting, ceaseless examination, and the in situ observation of superior prism-based SPR detection [4][5][6][7].…”