Design of a gold-nanowire embedded ZBLAN PCF-SPR for ultra-low refractive index sensing

IF 4 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2026-09-18 DOI:10.1007/s11082-026-09158-8

Mengting Yang, Qingmin Liu, Shanglin Hou, Caijian Xie, Gang Wu, Zuyong Yan

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引用次数: 0

Abstract

An advanced ZBLAN photonic crystal fiber utilizing surface plasmon resonance (SPR) sensor based on (PCF) for sensing ultra-low refractive index is theoretically investigated in this paper. The structural parameters were optimized by the finite element method. The results demonstrate that this sensor can detect variations of the refractive index ranging from 1.00 to 1.15, which is as low as the air refractive index at wavelength range of 665 nm to 1137 nm. The proposed sensor exhibits maximum wavelength sensitivity of 10,800 nm/RIU and maximum amplitude sensitivity of 229.71 RIU⁻¹. The sensor ensures excellent detection accuracy featuring a minimal wavelength resolution of 9.26 × 10⁻⁶ RIU. Additionally, the sensor provides a significant figure of merit of approximately 104.21 RIU⁻¹. This refractive index sensor is a promising candidate for broad application prospects in fields such as chemical sensing, biomedical detection, and environmental monitoring.

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用于超低折射率传感的金纳米线嵌入ZBLAN PCF-SPR设计

本文从理论上研究了一种利用基于PCF的表面等离子体共振（SPR）传感器传感超低折射率的新型ZBLAN光子晶体光纤。采用有限元法对结构参数进行了优化。结果表明，该传感器可以检测波长范围为665 ~ 1137 nm的1.00 ~ 1.15的折射率变化，与空气折射率一样低。该传感器的最大波长灵敏度为10800 nm/RIU，最大振幅灵敏度为229.71 RIU−1。该传感器具有9.26 × 10−6 RIU的最小波长分辨率，确保了出色的检测精度。此外，该传感器提供了约104.21 RIU−1的显著值。这种折射率传感器在化学传感、生物医学检测、环境监测等领域具有广阔的应用前景。

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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来源期刊

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.