A computational study of advanced hexagonal PCF (H-PCF) bio sensor for breast cancer identification

IF 3 Q3 Physics and Astronomy

Results in Optics Pub Date : 2025-09-28 DOI:10.1016/j.rio.2025.100908

A.Alice Linsie, K. Lalitha, G. Annapoorani

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Abstract

A novel hexagonal Photonic Crystal Fiber (PCF) with good sensitivity for the non-disruptive detection of breast cancer operating over terahertz (THz) regime has been reported in this study. The cladding region of this proposed H-PCF is made up of three layers of hexagonal air holes arranged in a triangular lattice structure. There is one hexagonal air hole in the middle that serves as a hollow core for studying the PCF during sensing operations. This core provides an index difference between the core, cladding, and background material, allowing efficient THz wave propagation and great sensitivity. Through simulation on COMSOL software, the compact arrangement of hexagonal air holes in this way facilitates a birefringence of 1.4 × 10⁻³, a minimum effective material loss (EML) of 1.22 × 10⁻³ cm⁻¹, a maximum core power fraction of 91.2 %, a maximum sensitivity of 99.83 %, and a very narrow effective area of 0.0375 µm² under a wide frequency band of 0.1–1.5 THz. The suggested H-PCF is a good alternative for PCF-based sensing devices because it of these unique features.

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先进六边形PCF （H-PCF）生物传感器乳腺癌识别的计算研究

本文报道了一种新型的六角形光子晶体光纤（PCF），该光纤在太赫兹（THz）波段具有良好的灵敏度，可用于乳腺癌的无损检测。这种提出的H-PCF的包层区域由三层六边形空气孔组成，这些空气孔以三角形晶格结构排列。中间有一个六角形的空气孔，在传感过程中用作研究PCF的空心核心。该核心提供了核心，包层和背景材料之间的指数差异，允许有效的太赫兹波传播和高灵敏度。通过COMSOL软件仿真，在0.1 ~ 1.5 THz的宽频段内，以这种方式紧凑排列的六角形气孔的双折射率为1.4 × 10−3，有效材料损耗（EML）最小为1.22 × 10−3 cm−1，最大堆芯功率分数为91.2%，最大灵敏度为99.83%，有效面积为0.0375µm2。建议的H-PCF是基于pcf的传感器件的一个很好的替代方案，因为它具有这些独特的功能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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