Resolution enhancement of optical surface plasmon resonance sensor using metamaterial

Abstract

Abstract:In this paper, we present and discuss a path to extend the enhancement of the resolution of an optical surface plasmon resonance (SPR) sensor. Basically, our approach is to combine bi-metamaterial layers to design the SPR sensor. The calculation shows that the proposed SPR sensor structure has a preference over the conventional SPR sensors and bimetallic SPR sensors since it gives a much sharper reflectance dip and can achieve considerable sensitivity improvement when compared to the recently reported investigations. The effects of the metamaterial permittivity, permeability, and thickness on the reflectance curve are studied. It is also seen that metamaterial layers improve the field of the proposed SPR structure, which may provide a novel tool to significantly enhance the sensitivity and resolution of the sensors.

Recent progress in surface plasmon resonance based sensors: A comprehensive review

“…The metamaterial contributed a broader dynamic range or efficient range of computable RI rises. The metamaterial acquires several advantages for increasing the resonance dip of optical SPR sensor, that leads to higher S of the sensing resolution and dynamic range [ 18 , 19 ]. J.…”

“…(RIU −1 ) Y. K. Prajapathi et al. 2013 [ 19 ] Prism + Ag + Metamaterial + Ag + Au + Water - - - The SPR sensor has the advantage of improving reflectance dip and S by employing the metamaterial layer. J. B.Muryaet al.2015 [ 24 ] Prism + Au + MoS 2 + Affinity + Water 48.82 0.615 5.12 The SPR sensor proposed the effect of Si between metal and MoS 2 .…”

Performance Analysis of Silicon and Blue Phosphorene/MoS2 Hetero-Structure Based SPR Sensor

“…These properties make them useful in the area of medical, health, biosensing application, drug analysis, etc. [3,4]. The basic idea of SPR sensors is based on surface plasmons (SPs).…”

Potential of SPR sensors based on multilayer interfaces with gold and LHM for biosensing applications

“…Very recently, Pal et al [24] proposed SPR sensors based on bi-LHMs with gold as an inner core and compared the above structure to another with two dielectric media instead of LHM. On the analysis of the reflectivity profile, the authors [24] pointed out the advantage of using the metamaterials to further enhance SPR sensor sensitivity.…”

“…Very recently, Pal et al [24] proposed SPR sensors based on bi-LHMs with gold as an inner core and compared the above structure to another with two dielectric media instead of LHM. On the analysis of the reflectivity profile, the authors [24] pointed out the advantage of using the metamaterials to further enhance SPR sensor sensitivity. Some researchers have demonstrated typical multilayer devices as biosensors that provide sensitivity almost 6-fold higher than that of the conventional SPR sensor [25].…”