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Design and Analysis of Nano Gold Coated Refractive Index Sensor with Asymmetric Multiple Holes

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Abstract

This paper proposed a photonic crystal fiber based on the surface plasmon resonance, with rectangular and circular holes. Rectangular air holes reduce confinement losses, and small circular air holes provide better matching of core and plasmonic modes. Noble plasmonic material gold is used to excite the surface plasmon and increases the operating wavelength range (400–950 nm). The analyte is located outside the sensor, which makes it easy to build the sensor. Numerical results display that the suggested sensor displays maximum amplitude sensitivity of 1540 RIU−1, an amplitude resolution of 6.49 × 10−7 RIU, a maximum wavelength sensitivity of 9000 nm/RIU, and a wavelength resolution of 1.11 × 10−5 RIU using the amplitude and wavelength interrogation methods, respectively. In this sensor, because of the presence of gold, chemical stability in the environment is high. In addition, the suggested sensor is very promising for medical and pharmaceutical measurement and diagnostic applications due to its high sensitivity, easy diagnosis, and easy manufacturing.

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Availability of Data and Materials

The datasets generated during the current study are available from the corresponding author upon reasonable request.

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Authors and Affiliations

  1. Nano-Optoelectronics Research Center, Electrical Engineering Department, Shiraz University of Technology, Shiraz, Iran

    Seyede Mahboobeh Mousavi Monazah, Farzin Emami & Mohammad Reza Salehi

  2. Visiting Academic Staff, Center for Smart Power and Energy Research, School of Engineering, Deakin University, Melbourne, Australia

    Farzin Emami

Authors
  1. Seyede Mahboobeh Mousavi Monazah
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  2. Farzin Emami
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  3. Mohammad Reza Salehi
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Contributions

Seyede Mahboobeh Mousavi monazah: conceptualization, methodology, visualization, data curation, writing-original draft. Farzin Emami: project administration, writing—review and editing. Mohammad Reza Salehi: supervision and project administration.

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Correspondence to Seyede Mahboobeh Mousavi Monazah.

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Mousavi Monazah, S.M., Emami, F. & Salehi, M.R. Design and Analysis of Nano Gold Coated Refractive Index Sensor with Asymmetric Multiple Holes. Plasmonics 18, 931–940 (2023). https://doi.org/10.1007/s11468-023-01823-y

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  • DOI: https://doi.org/10.1007/s11468-023-01823-y

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