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

Author

Patnaik, Amrit ; Senthilnathan, K. ; Jha, Rajan

Author_Institution

Nanophotonics & Plasmonics Lab., IIT Bhubaneswar, Bhubaneswar, India

Volume

27

Issue

23

fYear

2015

Firstpage

2437

Lastpage

2440

Abstract

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.

Keywords

fibre optic sensors; finite element analysis; graphene devices; indium compounds; infrared detectors; optical phase matching; surface plasmon resonance; C; D-shaped optical fiber; biolayer thickness monitoring; core guided mode; finite element method; graphene-based conducting metal oxide coated d-shaped optical fiber SPR sensor; graphene-based indium tin oxide coated surface plasmon resonance sensor; maximal phase matching; near infrared sensor; plasmon mode; wavelength 62.5 pm; wavelength sensitivity; Graphene; Indium tin oxide; Optical fiber sensors; Optical fibers; Optical surface waves; Plasmons; Surface waves; Graphene; Optical Fiber; Sensor; Surface Plasmon Resonance; Surface plasmon resonance; graphene; optical fiber; sensor;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2467189

Filename

7222411