SPR Sensing Enhancement with Dynamic Radiative Damping Stimulated by Graphene Conductivity Under Temperature Variation in NIR

Sharma, Anuj K and Dominic, Anumol (2019) SPR Sensing Enhancement with Dynamic Radiative Damping Stimulated by Graphene Conductivity Under Temperature Variation in NIR. In: PLASMONICS, 14 (6). pp. 1839-1842.

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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 (d(m)) 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 lambda = 1550 nm, the optimum radiation damping is achieved at d(m) = 35 nmand T = 322.7Kleading to a peak FOM value of 27,086 RIU-1. At. = 1310 nm, the peak FOM is 16,736.65 RIU-1 for d(m) = 35.4 nm and T = 315.6 K. The above peak FOM values are significantly greater than those presently available with plasmonic sensors.

Item Type:	Journal Article
Publication:	PLASMONICS
Publisher:	SPRINGER
Additional Information:	Copyright of this article belongs to SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Keywords:	Radiation damping; Plasmon; Fluoride glass; Graphene; Conductivity; Thermo-optic effect
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	08 Jan 2020 09:46
Last Modified:	08 Jan 2020 09:46
URI:	http://eprints.iisc.ac.in/id/eprint/64303

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