10.30495/ijbbe.2023.1991561.1027

Design Sensitive Plasmonic Based 1D Photonic Crystal Biosensor with Graphene-two Metal Layer

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  • Maryam Sharifi*1,
  • Sadeq Mohammed Ameen Mahmood2,
  1. Faculty of physics, Tabriz University, Tabriz, Iran
  2. Department of Physics, Tabriz Branch Islamic Azad University, Tabriz, Iran

Received: 2023-07-16

Accepted: 2023-09-21

Published in Issue 2023-07-01

Copyright (c) 2024 International Journal of Biophotonics and Biomedical Engineering

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Sharifi, M., & Mohammed Ameen Mahmood, S. (2023). Design Sensitive Plasmonic Based 1D Photonic Crystal Biosensor with Graphene-two Metal Layer. International Journal of Biophotonics and Biomedical Engineering (IJBBE), 3(1), 73-78. https://doi.org/10.30495/ijbbe.2023.1991561.1027
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Abstract

In the present paper , we propose surface plasmon resonance biosensor in combination with a photonic crystal that works based on changing the refractive index of the biomaterial using the transfer matrix method to diagnose blood components. The proposed biosensor structure is (TiO2/ SiO2)^2 / silver/ gold/ graphene , which gives a narrow angular reflectivity resonance. The performance parameters of biosensor such as sensitivity, detection accuracy reported. Our results show that the sensitivity of the proposed configuration is 150 deg /RIU, which is acceptable compared to the values reported in previous studies and shows better performance of the proposed biosensor.

Keywords

  • Biosensor,
  • Graphene,
  • Photonic crystal,
  • Surface plasmon resonance,
  • Sensitivity
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