Graphene-Based Conducting Metal Oxide Coated D-Shaped Optical Fiber SPR Sensor

We report a graphene-based indium tin oxide coated surface plasmon resonance sensor built on a D-shaped optical fiber for near infrared. Different parameters of the proposed sensor have been optimized to obtain a maximal phase matching between the core guided mode and the plasmon mode using finite e...

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Bibliographic Details
Published in:IEEE photonics technology letters 2015-12, Vol.27 (23), p.2437-2440
Main Authors: Patnaik, Amrit, Senthilnathan, K., Jha, Rajan
Format: Article
Language:English
Subjects:
Graphene
Indium tin oxide
Optical Fiber
Optical fiber sensors
Optical fibers
Optical surface waves
Plasmons
Sensor
Surface Plasmon Resonance
Surface waves
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Summary:We report a graphene-based indium tin oxide coated surface plasmon resonance sensor built on a D-shaped optical fiber for near infrared. Different parameters of the proposed sensor have been optimized to obtain a maximal phase matching between the core guided mode and the plasmon mode using finite element method. Wavelength sensitivity of the proposed structure is as high as 5700 nm/RIU with a maximum resolution of 1.754 × 10 -5 RIU. The proposed sensor can also be used for bio layer thickness monitoring with a maximum resolution of 62.5 pm in wavelength interrogation.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2015.2467189