Ultra-wide measurement range D-shaped photonic crystal fiber sensor based on surface plasmon resonance

IF 1.5 4区物理与天体物理 Q3 OPTICS

The European Physical Journal D Pub Date : 2024-08-31 DOI:10.1140/epjd/s10053-024-00902-x

Shuhuan Zhang, Ying Yang, Jiyu Dong

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Abstract

In this paper, a kind of D-type photonic crystal fiber (PCF) sensor with an ultra-wide detection range based on micro-opening gold film coating is proposed. This sensor allows for the sensing detection of the refractive index (RI) of the analyte ranging from 1.30 to 1.42. However, the sensor coated with a micro-opening gold film only achieves an average wavelength sensitivity of 1489 nm/RIU in the x-polarization direction. To improve the performance of the sensor, an attempt was made to replace the micro-opening gold film with MoO₂ nanofilm. After simulation calculation, it was found that the RI detection range of the sensor using MoO₂ nanofilm became 1.33–1.39. Excitingly, the average wavelength sensitivity in the x-polarized direction reaches 17, 178 nm/RIU, which is 11.5 times better than the original sensor. This implies that the sensor is more sensitive to changes in the RI and can provide more accurate sensing and detection results. It has been demonstrated that the performance of a D-type PCF sensor can be significantly improved by using MoO₂ nanofilm. This improvement helps to expand the application domain of sensors and enhance the accuracy of sensing detection. We believe that this research result has important implications for the development of fiber sensor technologies.

Graphical Abstract

Ultra-wide refractive index detection range fiber optic sensor

Abstract Image

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基于表面等离子体共振的超宽测量范围 D 型光子晶体光纤传感器

本文提出了一种基于微开口金膜涂层、具有超宽检测范围的 D 型光子晶体光纤（PCF）传感器。这种传感器可对 1.30 至 1.42 范围内的分析物折射率（RI）进行传感检测。然而，镀有微开口金膜的传感器在 x 偏振方向上的平均波长灵敏度仅为 1489 nm/RIU。为了提高传感器的性能，我们尝试用二氧化钼纳米薄膜取代微开口金膜。经过模拟计算，发现使用 MoO2 纳米薄膜的传感器的 RI 检测范围为 1.33-1.39。令人兴奋的是，X 偏振方向的平均波长灵敏度达到 17 178 nm/RIU，是原来传感器的 11.5 倍。这意味着传感器对 RI 的变化更加敏感，可以提供更准确的传感和检测结果。实验证明，使用二氧化锰纳米薄膜可以显著提高 D 型 PCF 传感器的性能。这一改进有助于拓展传感器的应用领域，提高传感检测的准确性。我们相信这一研究成果对光纤传感器技术的发展具有重要意义。

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

The European Physical Journal D 物理-物理：原子、分子和化学物理

CiteScore

3.10

自引率

11.10%

发文量

213

审稿时长

3 months

期刊介绍： The European Physical Journal D (EPJ D) presents new and original research results in: Atomic Physics; Molecular Physics and Chemical Physics; Atomic and Molecular Collisions; Clusters and Nanostructures; Plasma Physics; Laser Cooling and Quantum Gas; Nonlinear Dynamics; Optical Physics; Quantum Optics and Quantum Information; Ultraintense and Ultrashort Laser Fields. The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.