Freeform Spectrally Stable Topological Photonic Vortex Resonators

Freeform Spectrally Stable Topological Photonic Vortex Resonators | 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 Article Freeform Spectrally Stable Topological Photonic Vortex Resonators Alexander Khanikaev, Yuma Kawaguchi, Daria A. Smirnova, Filipp Komissarenko, and 5 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8613020/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 Topological concepts have been at the forefront of materials research in recent years, driving a revolution in our understanding of the response of quantum materials and enabling new ways to manipulate light and sound in topological metamaterials. Topological defects and topological boundaries of different dimensions have driven a paradigm shift in photonics, where topological photonic crystals and metamaterials can be engineered to create one-way flow of energy robust to defects or to control such flows with synthetic degrees of freedom along topological domain walls. More recently, topological point singularities encoded into photonic structures have been shown to enable confinement of optical modes with the topologically nontrivial nature of the cavity imprinted into the vorticity of optical far fields. Here we demonstrate that the two latter concepts - domain wall and point singularities - can be unified into an even more powerful tool to enable arbitrarily shaped resonant cavities of any dimension supporting spectrally stable “zero-energy” modes. We experimentally confirm that such modes, whose existence is guaranteed by topological principles, allow an unprecedented degree of control over the optical field, which appears to have no phase modulation across space, can have any desirable radiation pattern, and enables spectral stability regardless of shape or length. Physical sciences/Optics and photonics/Optical materials and structures/Metamaterials Physical sciences/Optics and photonics/Optical materials and structures/Photonic crystals Physical sciences/Optics and photonics/Applied optics Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SILineDefectv7.pdf Theoretical and analytical models of free-form resonators 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. 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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-8613020","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":588445035,"identity":"52988658-b1fd-4f27-9784-7ae38ce4f6d1","order_by":0,"name":"Alexander Khanikaev","email":"data:image/png;base64,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","orcid":"https://orcid.org/0000-0002-7689-216X","institution":"University of Central Florida","correspondingAuthor":true,"prefix":"","firstName":"Alexander","middleName":"","lastName":"Khanikaev","suffix":""},{"id":588445036,"identity":"e662f5d4-92f5-4537-ad04-1d161f829ad6","order_by":1,"name":"Yuma Kawaguchi","email":"","orcid":"","institution":"City College of New York","correspondingAuthor":false,"prefix":"","firstName":"Yuma","middleName":"","lastName":"Kawaguchi","suffix":""},{"id":588445037,"identity":"0c17ae97-8175-4140-a027-81781105c784","order_by":2,"name":"Daria A. 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