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<p>This study uses a defective photonic crystal composed of Si and SiO2 sheets to offer a novel photo-sensor for an effective diagnosis of anemia illnesses. Two equal periodic numbers are sandwiched behind a center defective layer. Normal blood samples or infected blood samples can be used to infiltrate the sensing sample into the damaged layer. The transmittance properties are examined via the transfer matrix technique. To get the optimum performance out of the photo-sensor, the impressions of the input angle (TE and TM polarization), the thickness of the defective gap, the number of periods, and the center wavelength are carefully examined. The suggested detector achieves an extraordinary sensitivity of 2611 nm/RIU, which is not achieved by several previously published works in this sector. Moreover, the proposed photo-sensor exhibits an exceptionally low detection limit (2.710 × 10–7 RIU), a high figure of merit (261,100 RIU-1), and an outstanding quality factor (171,725). Additionally, the suggested detector's low cost, adjustable design, precise recognition, and straightforward structure enable the industrial design that uses low-cost product nanofabrication. These benefits make the suggested photo-sensor a good option and practical instrument for identifying anemia disorders. It may also be applied to other chemical and biological constituents.</p>

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An Innovative and Effective Photo-Detector for Early Diagnosing of Anemia Based on Optical Structures

  • 期刊论文

  • 发表日期：

    2025年6月4日

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  • Malek G. Daher,
  • Mohd Mahadi Halim,
  • Naser M. Ahmed,
  • Mahmoud M. A. Eid

摘要

This study uses a defective photonic crystal composed of Si and SiO2 sheets to offer a novel photo-sensor for an effective diagnosis of anemia illnesses. Two equal periodic numbers are sandwiched behind a center defective layer. Normal blood samples or infected blood samples can be used to infiltrate the sensing sample into the damaged layer. The transmittance properties are examined via the transfer matrix technique. To get the optimum performance out of the photo-sensor, the impressions of the input angle (TE and TM polarization), the thickness of the defective gap, the number of periods, and the center wavelength are carefully examined. The suggested detector achieves an extraordinary sensitivity of 2611 nm/RIU, which is not achieved by several previously published works in this sector. Moreover, the proposed photo-sensor exhibits an exceptionally low detection limit (2.710 × 10–7 RIU), a high figure of merit (261,100 RIU-1), and an outstanding quality factor (171,725). Additionally, the suggested detector's low cost, adjustable design, precise recognition, and straightforward structure enable the industrial design that uses low-cost product nanofabrication. These benefits make the suggested photo-sensor a good option and practical instrument for identifying anemia disorders. It may also be applied to other chemical and biological constituents.