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Analysis for Confinement Loss in Advance V-Shaped PCF Based Au-SPR Biosensor

Nivedita Kar*, Ankita Kar**, Mayank Singh***, Deepak Yadav****

*-** Assistant Professor, IERT, Prayagraj.

***-**** Student, Department of Electronics Engineering, IERT, Prayagraj.

Periodicity:January - June'2025

Abstract

This paper introduces an advanced V-shaped photonic crystal fiber (PCF)-based surface plasmon resonance (SPR) biosensor. Numerical analysis of the sensor is carried out using the finite element method (FEM) in COMSOL Multiphysics 6.2. This incorporation of a V-shaped geometry improves the coupling between the core-guided mode and the surface plasmon mode, leading to optimized wavelength sensitivity and minimized confinement loss. The proposed sensor design is capable of detecting the analytes within a refractive index range of 1.38 to 1.42, making it suitable for applications in biochemical and biological detection, including drug analysis, antigen-antibody interactions, and gas sensing.

Keywords

Confinement Loss, Photonic Crystal Fiber (PCF), Surface Plasmon Polaritons (SPP) and Surface Plasmon Resonance (SPR).

How to Cite this Article?

Kar, N., Kar, A., Singh, M., and Yadav, D. (2025). Analysis for Confinement Loss in Advance V-Shaped PCF Based Au-SPR Biosensor. i-manager’s Journal on Physical Sciences, 4(1), 1-10.

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