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<p>A dual-core photonic crystal fiber (DC-PCF) sensor with different shaped analyte channel i.e., ellipse and lanceolate is proposed for the detection of contaminated water containing pathogens. Air-holes are incorporated in the cladding area of this sensor with silica as substrate material. The proposed sensor operates with wavelength ranging between 2 and 3&#xa0;µm. COMSOL Multiphysics software has been utilized for the modelling and simulation of the suggested DC-PCF sensor, while the plotting of schematic curves has been performed using the Origin software. The suggested DC-PCF sensor for structure with ellipse analyte channel has the highest sensitivity of 8744.186&#xa0;nm/RIU, 8154.806&#xa0;nm/RIU, 6419.407&#xa0;nm/RIU and 4819.683&#xa0;nm/RIU for vibrio cholera, bacillus anthracis, e. coli and enterococcus faecalis respectively for the fiber length of 1800&#xa0;µm whereas for structure with lanceolate analyte channel offers the highest sensitivity of 13501.66&#xa0;nm/RIU, 10183.69&#xa0;nm/RIU, 8263.833&#xa0;nm/RIU and 6583.53&#xa0;nm/RIU for vibrio cholera, bacillus anthracis, e. coli and enterococcus faecalis respectively for the 1800&#xa0;µm length of fiber. This DC-PCF sensor can tackle the difficulties associated with the traditional pathogen detecting sensors by providing compact and advanced solutions. The cost effectiveness and ease of fabrication may lead to the proposed sensor structure for future applications.</p>

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Comparative analysis of dual-core photonic crystal fiber sensor for water contaminants detection using different shaped analyte channel

  • 期刊论文

  • 发表日期：

    2025年3月31日

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  • Vikash Mourya,
  • Sapana Yadav,
  • Adarsh Chandra Mishra,
  • Pooja Lohia,
  • Anuj Sharma,
  • D. K. Dwivedi,
  • M. Khalid Hossain

摘要

A dual-core photonic crystal fiber (DC-PCF) sensor with different shaped analyte channel i.e., ellipse and lanceolate is proposed for the detection of contaminated water containing pathogens. Air-holes are incorporated in the cladding area of this sensor with silica as substrate material. The proposed sensor operates with wavelength ranging between 2 and 3 µm. COMSOL Multiphysics software has been utilized for the modelling and simulation of the suggested DC-PCF sensor, while the plotting of schematic curves has been performed using the Origin software. The suggested DC-PCF sensor for structure with ellipse analyte channel has the highest sensitivity of 8744.186 nm/RIU, 8154.806 nm/RIU, 6419.407 nm/RIU and 4819.683 nm/RIU for vibrio cholera, bacillus anthracis, e. coli and enterococcus faecalis respectively for the fiber length of 1800 µm whereas for structure with lanceolate analyte channel offers the highest sensitivity of 13501.66 nm/RIU, 10183.69 nm/RIU, 8263.833 nm/RIU and 6583.53 nm/RIU for vibrio cholera, bacillus anthracis, e. coli and enterococcus faecalis respectively for the 1800 µm length of fiber. This DC-PCF sensor can tackle the difficulties associated with the traditional pathogen detecting sensors by providing compact and advanced solutions. The cost effectiveness and ease of fabrication may lead to the proposed sensor structure for future applications.