基于Au/TiO2的高灵敏度无芯光纤表面等离子体共振折射率传感器。

IF 2.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nanotechnology Pub Date : 2025-09-19 DOI:10.1088/1361-6528/ae01aa

Xiaohan Wang, Hongyu Song, Yanpei Xu, Qi Wang

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引用次数: 0

摘要

光纤表面等离子体共振传感器（SPR）在各种需要高灵敏度传感器的领域中发挥着重要作用。本文提出了一种由Au/TiO2纳米纤维材料修饰的多模光纤-无芯光纤-多模光纤（MCM）结构组成的SPR折射率传感器。实验结果表明，TiO2纳米纤维/Au结构传感器的灵敏度为3687.65 nm/RIU，在1.333 ~ 1.380的折射率范围内，质量因子高达29.50，是Au膜结构传感器的2.05倍。这种新型结构优化了多种性能，可广泛应用于化学传感、安全检测、小分子测量、医学传感、高灵敏度传感等领域。

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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High-sensitivity coreless fiber surface plasmon resonance refractive index sensor based on Au/TiO₂.

Fiber-optic surface plasmon resonance (SPR) sensors play a critical role in applications requiring high sensitivity. This work proposes an SPR refractive index (RI) sensor based on a multimode-coreless-multimode fiber structure functionalized with Au/TiO₂nanofiber composites. Experimental results demonstrate that the TiO₂nanofiber/Au sensor achieves a sensitivity of 3687.65 nm RIU^-1and a figure of merit of 29.50 RIU^-1within the RI range of 1.333-1.380. These values represent a 2.05-fold enhancement over conventional Au-film sensors. The synergistic design optimizes multiple performance metrics, enabling broad applications in chemical detection, biosafety monitoring, micro-molecule analysis, biomedical sensing, and other high-sensitivity detection scenarios.

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来源期刊

Nanotechnology 工程技术-材料科学：综合

CiteScore

7.10

自引率

5.70%

发文量

820

审稿时长

2.5 months

期刊介绍： The journal aims to publish papers at the forefront of nanoscale science and technology and especially those of an interdisciplinary nature. Here, nanotechnology is taken to include the ability to individually address, control, and modify structures, materials and devices with nanometre precision, and the synthesis of such structures into systems of micro- and macroscopic dimensions such as MEMS based devices. It encompasses the understanding of the fundamental physics, chemistry, biology and technology of nanometre-scale objects and how such objects can be used in the areas of computation, sensors, nanostructured materials and nano-biotechnology.