Y-shaped Three-Channel Photonic Crystal Fiber Sensor for Simultaneous Measurement of Magnetic Field, Temperature, and Refractive Index

Y-shaped Three-Channel Photonic Crystal Fiber Sensor for Simultaneous Measurement of Magnetic Field, Temperature, and Refractive Index | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Y-shaped Three-Channel Photonic Crystal Fiber Sensor for Simultaneous Measurement of Magnetic Field, Temperature, and Refractive Index Tengfei Xu, Shengli Pu, siyang Huang, Chencheng Zhang, Weinan Liu, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6879456/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 29 Jul, 2025 Read the published version in Plasmonics → Version 1 posted 26 You are reading this latest preprint version Abstract A high-sensitivity triple-parameter sensor based on surface plasmon resonance (SPR) in a D-type photonic crystal fiber (PCF) is proposed. The sensor incorporates a Y-shaped sensing channel that enables the simultaneous and independent detection of three parameters with high sensitivity and minimal cross-interference. By integrating silver and gold in the form of thin film and nanowire, the sensor can simultaneously measure the external magnetic field, ambient temperature, and analyte refractive index with high accuracy. The finite element method (FEM) is used to analyze the effects of structural parameters on the sensing performance, and the design is optimized accordingly. Numerical results show that the sensor achieves a magnetic field sensing sensitivity of 2.06 nm/mT within the range of 0–80 mT, a temperature sensing sensitivity of 9.2 nm/°C within the range of -5 to 30°C, and a refractive index sensing sensitivity of 28,000 nm/RIU within the range of 1.405–1.425. Owing to its simple structure and high sensitivity, the sensor is not only easy to fabricate and integrate, but also well-suited for complex application scenarios that require high detection accuracy, such as biological, chemical, and marine sensing. Magnetic Field Sensor Temperature Sensor Refractive Index Sensor D-type Photonic Crystal Fiber Surface Plasmon Resonance Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 29 Jul, 2025 Read the published version in Plasmonics → Version 1 posted Editorial decision: Revision requested 07 Jul, 2025 Reviews received at journal 05 Jul, 2025 Reviews received at journal 05 Jul, 2025 Reviews received at journal 04 Jul, 2025 Reviews received at journal 04 Jul, 2025 Reviews received at journal 02 Jul, 2025 Reviews received at journal 30 Jun, 2025 Reviews received at journal 30 Jun, 2025 Reviews received at journal 29 Jun, 2025 Reviewers agreed at journal 28 Jun, 2025 Reviewers agreed at journal 26 Jun, 2025 Reviewers agreed at journal 26 Jun, 2025 Reviews received at journal 26 Jun, 2025 Reviewers agreed at journal 26 Jun, 2025 Reviewers agreed at journal 26 Jun, 2025 Reviewers agreed at journal 26 Jun, 2025 Reviewers agreed at journal 25 Jun, 2025 Reviewers agreed at journal 24 Jun, 2025 Reviewers agreed at journal 24 Jun, 2025 Reviewers agreed at journal 24 Jun, 2025 Reviewers agreed at journal 15 Jun, 2025 Reviewers agreed at journal 15 Jun, 2025 Reviewers invited by journal 15 Jun, 2025 Editor assigned by journal 12 Jun, 2025 Submission checks completed at journal 12 Jun, 2025 First submitted to journal 12 Jun, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6879456","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":471639964,"identity":"94c2857a-e15f-4b52-a013-93c6002584a6","order_by":0,"name":"Tengfei Xu","email":"","orcid":"","institution":"University of Shanghai for Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Tengfei","middleName":"","lastName":"Xu","suffix":""},{"id":471639965,"identity":"3d4f209b-cc9e-4cd1-986b-3e1deae8c0bf","order_by":1,"name":"Shengli 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The sensor incorporates a Y-shaped sensing channel that enables the simultaneous and independent detection of three parameters with high sensitivity and minimal cross-interference. By integrating silver and gold in the form of thin film and nanowire, the sensor can simultaneously measure the external magnetic field, ambient temperature, and analyte refractive index with high accuracy. The finite element method (FEM) is used to analyze the effects of structural parameters on the sensing performance, and the design is optimized accordingly. Numerical results show that the sensor achieves a magnetic field sensing sensitivity of 2.06 nm/mT within the range of 0\u0026ndash;80 mT, a temperature sensing sensitivity of 9.2 nm/\u0026deg;C within the range of -5 to 30\u0026deg;C, and a refractive index sensing sensitivity of 28,000 nm/RIU within the range of 1.405\u0026ndash;1.425. 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