Improvement of directivity in plasmonic nanoantennas based on structured cubic gold nanoparticles

Improvement of directivity in plasmonic nanoantennas based on structured cubic gold nanoparticles | 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 Improvement of directivity in plasmonic nanoantennas based on structured cubic gold nanoparticles Shiva Moazen Dehkordi, Hamidreza Mohammadi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3174697/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 An array of metallic nanoparticles can diffract or concentrate the incident electromagnetic wave and hence behaves as an antenna. In this paper, the effects of inner sub-wavelength structure of nanoparticles is studied on the directivity of the plasmonic nanoantenna which is coated on the output of a waveguide. The results show that structured nanoantennas can improve the directivity of the antenna due to the hybridization mechanism. The resuls may be useful for designing and fabricateing directive optical fibers endcaps. 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-3174697","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":219374956,"identity":"63d91584-02d2-4a66-b4f9-81ee618f6603","order_by":0,"name":"Shiva Moazen Dehkordi","email":"","orcid":"","institution":"University of Isfahan","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Shiva","middleName":"Moazen","lastName":"Dehkordi","suffix":""},{"id":219374957,"identity":"1780a22c-c1d5-4b50-9f88-effa9c884c42","order_by":1,"name":"Hamidreza Mohammadi","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAx0lEQVRIiWNgGAWjYBACAxDB2MDA2MbeAOJakKKF5wCIK0GClgaJBBCTCC3mDLwPmG7u2CbbJ/n86oYfBRIM/O3dCXi1WDawGzDnnrlt3CadU3azB+gwiTNnN+B32AE2BubcttuJQC1pN3iAWgwkconVInkm7eYf0rRIsB+7TZwth9kYDgO1GLfx5LDdljGQ4CHsl+NtjI+BWmTntx9/dvPNHxs5/vZe/FoYmBkYDkBYPOA44sGvHBWwPyBF9SgYBaNgFIwgAABGJkXZ1i4H/QAAAABJRU5ErkJggg==","orcid":"","institution":"University of Isfahan","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Hamidreza","middleName":"","lastName":"Mohammadi","suffix":""}],"badges":[],"createdAt":"2023-07-16 09:29:19","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3174697/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3174697/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":40479725,"identity":"bbda8d89-43f9-4309-b779-87ebc3d74157","added_by":"auto","created_at":"2023-07-24 14:29:41","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":704202,"visible":true,"origin":"","legend":"","description":"","filename":"ShivaMoazensubmitted.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3174697/v1_covered_de4a8d0d-05c8-43a8-ac58-00166e87c10b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Improvement of directivity in plasmonic nanoantennas based on structured cubic gold nanoparticles","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"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},"keywords":"","lastPublishedDoi":"10.21203/rs.3.rs-3174697/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3174697/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eAn array of metallic nanoparticles can diffract or concentrate the incident electromagnetic wave and hence behaves as an antenna. 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