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Article

Graphene-Coated Highly Sensitive Photonic Crystal Fiber Surface Plasmon Resonance Sensor for Aqueous Solution: Design and Numerical Analysis

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Department of Electrical & Electronic Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh
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Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh
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Department of Electrical & Electronic Engineering, Varendra University, Rajshahi 6204, Bangladesh
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Department of Electronic and Telecommunications Engineering, Instituto Tecnológico Metropolitano, Medellin 050013, Colombia
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Author to whom correspondence should be addressed.
Photonics 2021, 8(5), 155; https://doi.org/10.3390/photonics8050155
Received: 19 March 2021 / Revised: 26 April 2021 / Accepted: 28 April 2021 / Published: 6 May 2021
(This article belongs to the Section Lasers, Light Sources and Sensors)
This paper presents the design and analysis of a surface plasmon resonance (SPR) sensor in a photonic crystal fiber (PCF) platform, where graphene is used externally to attain improved sensing performance for an aqueous solution. The performance of the proposed sensor was analyzed using the finite element method-based simulation tool COMSOL Multiphysics. According to the simulation results, the proposed sensor exhibits identical linear characteristics as well as a very high figure of merit (FOM) of 2310.11 RIU−1 in the very low detection limit of 10−3. The analysis also reveals the maximum amplitude sensitivity of 14,847.03 RIU−1 and 7351.82 RIU−1 for the x and y polarized modes, respectively, which are high compared to several previously reported configurations. In addition, the average wavelength sensitivity is 2000 nm/RIU which is comparatively high for the analyte refractive index (RI) ranging from 1.331 to 1.339. Hence, it is highly expected that the proposed PCF-based SPR sensor can be a suitable candidate in different sensing applications, especially for aqueous solutions. View Full-Text
Keywords: surface plasmon polariton (SPP); finite element method; photonic crystal fiber; graphene; refractive index (RI) sensor; optical fiber sensor; surface plasmon resonance surface plasmon polariton (SPP); finite element method; photonic crystal fiber; graphene; refractive index (RI) sensor; optical fiber sensor; surface plasmon resonance
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MDPI and ACS Style

Paul, A.K.; Mollah, M.A.; Hassan, M.Z.; Gomez-Cardona, N.; Reyes-Vera, E. Graphene-Coated Highly Sensitive Photonic Crystal Fiber Surface Plasmon Resonance Sensor for Aqueous Solution: Design and Numerical Analysis. Photonics 2021, 8, 155. https://doi.org/10.3390/photonics8050155

AMA Style

Paul AK, Mollah MA, Hassan MZ, Gomez-Cardona N, Reyes-Vera E. Graphene-Coated Highly Sensitive Photonic Crystal Fiber Surface Plasmon Resonance Sensor for Aqueous Solution: Design and Numerical Analysis. Photonics. 2021; 8(5):155. https://doi.org/10.3390/photonics8050155

Chicago/Turabian Style

Paul, Alok K., Md. A. Mollah, Md. Z. Hassan, Nelson Gomez-Cardona, and Erick Reyes-Vera. 2021. "Graphene-Coated Highly Sensitive Photonic Crystal Fiber Surface Plasmon Resonance Sensor for Aqueous Solution: Design and Numerical Analysis" Photonics 8, no. 5: 155. https://doi.org/10.3390/photonics8050155

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