Scholarlink

<p>This work presents a high-performance terahertz reflective cross-polarization conversion metasurface with integrated biosensing capabilities. The design, based on an octagonal split-ring resonator fabricated on a gold-polyimide substrate, attains a polarization conversion ratio (PCR) surpassing 90% across the 3.80–8.25 THz range, with an average PCR of 97.25%, peak efficiency of 99.87% and sustained average efficiency of 96.25% at oblique incidences up to 20°. In addition to its polarization functionality, the proposed design operates as a biosensor capable of detecting refractive index variations linked to various cancer types, reaching a maximum sensitivity of 1.69 THz/RIU. This dual-functional approach shows the feasibility of uniting ultrawide polarization conversion and high-sensitivity biosensing in a single, cost-effective terahertz device, offering strong potential for advanced biomedical and photonic applications.</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

Ultra-wideband reflecting linear cross polarization converter with integrated high-sensitivity biosensing

  • 期刊论文

  • 发表日期：

    2025年7月16日

查看全文
  • Taha Sheheryar,
  • Jacob Wekalao,
  • Bo Lv,
  • Lei Gao

摘要

This work presents a high-performance terahertz reflective cross-polarization conversion metasurface with integrated biosensing capabilities. The design, based on an octagonal split-ring resonator fabricated on a gold-polyimide substrate, attains a polarization conversion ratio (PCR) surpassing 90% across the 3.80–8.25 THz range, with an average PCR of 97.25%, peak efficiency of 99.87% and sustained average efficiency of 96.25% at oblique incidences up to 20°. In addition to its polarization functionality, the proposed design operates as a biosensor capable of detecting refractive index variations linked to various cancer types, reaching a maximum sensitivity of 1.69 THz/RIU. This dual-functional approach shows the feasibility of uniting ultrawide polarization conversion and high-sensitivity biosensing in a single, cost-effective terahertz device, offering strong potential for advanced biomedical and photonic applications.