Scholarlink

<p>This research presents a surface plasmon resonance (SPR) sensor based on photonic crystal fiber (PCF), specifically designed for the detection of diabetes. Gold is used as the plasmonic material in a layered configuration to enhance sensor performance. The proposed design is analyzed using the finite element method (FEM) to assess its capability in identifying diabetes-related variations. The PCF structure features two rings of air holes organized in a hexagonal pattern, with a thin layer of gold plating applied to enable SPR excitation. SPR occurs when the surface plasmon polariton (SPP) mode and the fundamental core mode interact under phase-matching conditions. Diabetes-specific samples, characterized by distinct refractive indices (RI), are filled into the fiber. Variations in RI cause shifts in the SPR resonance wavelength observed through confinement loss analysis. The resonance shift between normal and diabetic samples reflects their differing RI values. The sensor attains a sensitivity of 2400&#xa0;nm/RIU, based on these spectral shifts. With its straightforward sensing mechanism, the proposed PCF-based SPR sensor offers a practical, economical approach to diabetes diagnosis.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Design of photonic crystal fiber-based plasmonic sensor for diabetes detection

  • 期刊论文

  • 发表日期：

    2025年12月23日

查看全文
  • Vishal Chaudhary,
  • Sonal Singh

摘要

This research presents a surface plasmon resonance (SPR) sensor based on photonic crystal fiber (PCF), specifically designed for the detection of diabetes. Gold is used as the plasmonic material in a layered configuration to enhance sensor performance. The proposed design is analyzed using the finite element method (FEM) to assess its capability in identifying diabetes-related variations. The PCF structure features two rings of air holes organized in a hexagonal pattern, with a thin layer of gold plating applied to enable SPR excitation. SPR occurs when the surface plasmon polariton (SPP) mode and the fundamental core mode interact under phase-matching conditions. Diabetes-specific samples, characterized by distinct refractive indices (RI), are filled into the fiber. Variations in RI cause shifts in the SPR resonance wavelength observed through confinement loss analysis. The resonance shift between normal and diabetic samples reflects their differing RI values. The sensor attains a sensitivity of 2400 nm/RIU, based on these spectral shifts. With its straightforward sensing mechanism, the proposed PCF-based SPR sensor offers a practical, economical approach to diabetes diagnosis.