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- Title
SPR Sensing Enhancement with Dynamic Radiative Damping Stimulated by Graphene Conductivity Under Temperature Variation in NIR.
- Authors
Sharma, Anuj K.; Dominic, Anumol
- Abstract
The dynamic nature of radiation damping is exploited in a fluoride fiber–based plasmonic sensor in terms of variable temperature (T) and Ag layer thickness (dm) at certain near-infrared wavelengths. The optimum point of radiation damping, which is stimulated by the presence of a graphene monolayer and its dynamic dispersive and thermo-optic properties as per Kubo formulation, causes extremely huge enhancement in sensor's performance (analyzed in terms of its figure of merit, i.e., FOM). The simulation indicates that at λ = 1550 nm, the optimum radiation damping is achieved at dm = 35 nm and T = 322.7 K leading to a peak FOM value of 27,086 RIU−1. At λ = 1310 nm, the peak FOM is 16,736.65 RIU−1 for dm = 35.4 nm and T = 315.6 K. The above peak FOM values are significantly greater than those presently available with plasmonic sensors.
- Subjects
GRAPHENE; FLUORIDE glasses; TEMPERATURE; RADIATION
- Publication
Plasmonics, 2019, Vol 14, Issue 6, p1839
- ISSN
1557-1955
- Publication type
Article
- DOI
10.1007/s11468-019-00980-3