High performance gold-nanowires-coated PCF-SPR sensor for refractive index detection

High performance gold-nanowires-coated PCF-SPR sensor for refractive index detection | 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 High performance gold-nanowires-coated PCF-SPR sensor for refractive index detection Jiayuan Liu, Jie Dong, Qingmin Liu, Shanglin Hou, Gang Wu, Zuyong Yan This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4614812/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract A novel refractive index sensor based on surface plasmon resonance (SPR) of an excentric-core photonic crystal optical fiber (PCF) is proposed, whose cladding consists of air holes of two sizes and double gold nanowires are coated on its outer surface. The air hole diameter and spacing, gold-nanowire diameter are optimized respectively to obtain the optimal sensing performance by using the finite element method (FEM). The results indicate that the proposed ex-centric core PCF-SPR sensor with the gold nanowire diameter of 0.9 µm can detect refractive index of 1.34 ~ 1.39 in the wavelength range of 600 ~ 1500 nm with the maximum wavelength sensitivity of 51200 nm/RIU, amplitude sensitivity of -1248.5 RIU − 1 , minimum resolution of 1.95×10 − 6 RIU and optimal FOM of 179.33 RIU − 1 . The PCF-SPR has potential applications including temperature measurement, organic chemical detection, medical detection, biomolecular detection and so on. surface plasmon resonance photonic crystal fiber refractive index gold nanowire Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-4614812","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":324740081,"identity":"0805945b-0bb2-4110-9325-b0860e4c79f5","order_by":0,"name":"Jiayuan Liu","email":"","orcid":"","institution":"Lanzhou University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Jiayuan","middleName":"","lastName":"Liu","suffix":""},{"id":324740082,"identity":"bd762042-9ccc-462d-ae27-a7d0331d1be2","order_by":1,"name":"Jie Dong","email":"","orcid":"","institution":"Lanzhou University of 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nanowire","lastPublishedDoi":"10.21203/rs.3.rs-4614812/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4614812/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eA novel refractive index sensor based on surface plasmon resonance (SPR) of an excentric-core photonic crystal optical fiber (PCF) is proposed, whose cladding consists of air holes of two sizes and double gold nanowires are coated on its outer surface. The air hole diameter and spacing, gold-nanowire diameter are optimized respectively to obtain the optimal sensing performance by using the finite element method (FEM). The results indicate that the proposed ex-centric core PCF-SPR sensor with the gold nanowire diameter of 0.9 \u0026micro;m can detect refractive index of 1.34\u0026thinsp;~\u0026thinsp;1.39 in the wavelength range of 600\u0026thinsp;~\u0026thinsp;1500 nm with the maximum wavelength sensitivity of 51200 nm/RIU, amplitude sensitivity of -1248.5 RIU\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e, minimum resolution of 1.95\u0026times;10\u003csup\u003e\u0026minus;\u0026thinsp;6\u003c/sup\u003e RIU and optimal FOM of 179.33 RIU\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e. The PCF-SPR has potential applications including temperature measurement, organic chemical detection, medical detection, biomolecular detection and so on.\u003c/p\u003e","manuscriptTitle":"High performance gold-nanowires-coated PCF-SPR sensor for refractive index detection","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-07-12 20:12:14","doi":"10.21203/rs.3.rs-4614812/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"7ff7e29d-01ea-434a-8c57-0f87c7b51393","owner":[],"postedDate":"July 12th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-08-28T23:44:16+00:00","versionOfRecord":[],"versionCreatedAt":"2024-07-12 20:12:14","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4614812","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4614812","identity":"rs-4614812","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}