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Title: Doped single-wall carbon nanotubes in propagating surface plasmon resonance based fiber optic refractive index sensing
Authors: Mishra A.K.
Mishra S.K.
Verma R.K.
Published in: Plasmonics
Abstract: We propose a surface plasmon resonance (SPR)-based fiber coupled refractive index sensing probe utilizing single-wall carbon nanotubes (SWCNTs) as the upper most layer. The sensor is designed by considering indium tin oxide (ITO) film on the bare core of a multi-moded step-index fiber, followed by the deposition of silicon, and then by that of the highly doped bundled SWCNTs layers. The film thicknesses of different constituent layers are optimized with respect to the sensitivity and the detection accuracy of the sensor. The theoretical analysis results in high sensitivity of 9.78 μm per refractive index unit (μm/RIU) for the optimized probe in the infra-red (IR) region of the electromagnetic (EM) spectrum.
Citation: Plasmonics (2017), 12(): 1657-1663
Issue Date: 2017
Appears in Collections:Journal Publications [PH]

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