Harnessing highly efficient coherent polariton parametric emission in quantum confined perovskite microcavities

Harnessing highly efficient coherent polariton parametric emission in quantum confined perovskite microcavities | 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 Harnessing highly efficient coherent polariton parametric emission in quantum confined perovskite microcavities Qing Zhang, Xinyi Deng, Sanjib Ghosh, Jiepeng Song, Chengyong Yu, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7076377/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract Microcavity exciton polaritons emerge as a versatile platform for nonlinear optical effects thanks to the unique dispersion that gives access to a manifold of energy and wavevector conserved processes. Among them energy-degenerate optical parametric oscillation with balanced signal and idler emission on two opposite angles appears to be ideal candidate for coherent quantum applications, such as generating correlated photons, and creating supersolid phase of matter. However, efficient generation of parametric emission while preserving strong coherence persists as a critical challenge mainly due to the lack of strong parametric interactions compared to the simultaneous interaction with relaxation channels. Here in this work, we report highly efficient parametric emission with sub-1 meV linewidth from quantum confined microcavities, enabling the first observation of strong phase coherence between the two parametric species in momentum space. Our systematic analysis reveals that a quantum size effect in our confined microcavities as the microscopic mechanism for the observed anomalous enhancement of parametric scattering when system size scales down, highlighting the important role of quantum confinement and disorder in triggering exotic parametric interactions and applications for microcavity polaritons. Finally, we demonstrate the emergence of a polariton supersolid phase at room temperature in a strongly coherent parametric oscillator, characterized by a periodic density modulation in real space that indicates the breaking of translational symmetry. Physical sciences/Physics/Optical physics/Polaritons Physical sciences/Optics and photonics/Optical physics/Polaritons polariton parametric scattering confined microcavity coherent parametric emission quantum size effect supersolidity Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SIparametricemissionquantumconfinedmicrocavity.pdf Supplementary information Cite Share Download PDF Status: Under Review 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-7076377","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":483680434,"identity":"06dff898-0c71-48d1-9243-102678659416","order_by":0,"name":"Qing Zhang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA00lEQVRIiWNgGAWjYHACNhAhx8ADZxOpxZh0LYkNRGvhO8D+7MHPHbXp23nOGDB8KDvMwD+7Ab8WyQMM6Ya9Z47n7uztMWCcce4wg8SdA/i1GBxgOCbB23Ysd8N5HgNm3rbDDAYSCYS0MLZJ/m07lm4A0vKXOC3MbNK8bTUJBmd7DJgZidEieYCNTVq27YDhzp5jBQd7zqXzSNwgoAUUYpJv2+rkzXmSNz74UWYtxz+DgBaG+w9AJNA9QPIAEPMQUA9VxsBQB9YyCkbBKBgFowArAAAD/kJKk8IoTwAAAABJRU5ErkJggg==","orcid":"https://orcid.org/0000-0002-6869-0381","institution":"Peking University","correspondingAuthor":true,"prefix":"","firstName":"Qing","middleName":"","lastName":"Zhang","suffix":""},{"id":483680435,"identity":"5520c788-ee98-401c-9ea8-497560a5f9f4","order_by":1,"name":"Xinyi Deng","email":"","orcid":"","institution":"Peking University","correspondingAuthor":false,"prefix":"","firstName":"Xinyi","middleName":"","lastName":"Deng","suffix":""},{"id":483680436,"identity":"fd85ee19-bccf-4130-b862-162f007850ae","order_by":2,"name":"Sanjib Ghosh","email":"","orcid":"https://orcid.org/0000-0002-5014-9466","institution":"The Chinese University of Hong Kong","correspondingAuthor":false,"prefix":"","firstName":"Sanjib","middleName":"","lastName":"Ghosh","suffix":""},{"id":483680437,"identity":"67a38ec4-e11a-44d4-92fb-53b4725625f5","order_by":3,"name":"Jiepeng Song","email":"","orcid":"","institution":"Peking University","correspondingAuthor":false,"prefix":"","firstName":"Jiepeng","middleName":"","lastName":"Song","suffix":""},{"id":483680438,"identity":"3ab54c43-cd65-4d25-b608-3263492dafb2","order_by":4,"name":"Chengyong Yu","email":"","orcid":"","institution":"The Chinese University of Hong Kong, Shenzhen","correspondingAuthor":false,"prefix":"","firstName":"Chengyong","middleName":"","lastName":"Yu","suffix":""},{"id":483680439,"identity":"96575a0a-a57c-4d81-804b-da700e43e541","order_by":5,"name":"Chun Li","email":"","orcid":"","institution":"Peking University","correspondingAuthor":false,"prefix":"","firstName":"Chun","middleName":"","lastName":"Li","suffix":""},{"id":483680440,"identity":"30f9e5d4-8148-42ee-8588-f23ddc225b13","order_by":6,"name":"Xinfeng Liu","email":"","orcid":"https://orcid.org/0000-0002-7662-7171","institution":"National Center for Nanoscience and Technology","correspondingAuthor":false,"prefix":"","firstName":"Xinfeng","middleName":"","lastName":"Liu","suffix":""}],"badges":[],"createdAt":"2025-07-08 15:35:06","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7076377/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7076377/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":86621106,"identity":"cf1d4e36-110c-471e-8c14-e594309c7c30","added_by":"auto","created_at":"2025-07-14 03:24:01","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1666416,"visible":true,"origin":"","legend":"Article File","description":"","filename":"parametricemissionquantumconfinedmicrocavity.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7076377/v1_covered_b4df3b8e-5f36-4298-b33b-b8be9795062c.pdf"},{"id":86620632,"identity":"fc963346-e0fb-44da-a817-960aed16fcef","added_by":"auto","created_at":"2025-07-14 03:15:59","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"supplement","size":1431395,"visible":true,"origin":"","legend":"Supplementary information","description":"","filename":"SIparametricemissionquantumconfinedmicrocavity.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7076377/v1/2536449a1156dc4ff083e198.pdf"}],"financialInterests":"There is \u003cb\u003eNO\u003c/b\u003e Competing Interest.","formattedTitle":"Harnessing highly efficient coherent polariton parametric emission in quantum confined perovskite microcavities","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"nature-portfolio","isNatureJournal":true,"hasQc":false,"allowDirectSubmit":false,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"","title":"Nature Portfolio","twitterHandle":"","acdcEnabled":false,"dfaEnabled":false,"editorialSystem":"ejp","reportingPortfolio":"","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"polariton parametric scattering, confined microcavity, coherent parametric emission, quantum size effect, supersolidity","lastPublishedDoi":"10.21203/rs.3.rs-7076377/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7076377/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Microcavity exciton polaritons emerge as a versatile platform for nonlinear optical effects thanks to the unique dispersion that gives access to a manifold of energy and wavevector conserved processes. Among them energy-degenerate optical parametric oscillation with balanced signal and idler emission on two opposite angles appears to be ideal candidate for coherent quantum applications, such as generating correlated photons, and creating supersolid phase of matter. However, efficient generation of parametric emission while preserving strong coherence persists as a critical challenge mainly due to the lack of strong parametric interactions compared to the simultaneous interaction with relaxation channels. Here in this work, we report highly efficient parametric emission with sub-1 meV linewidth from quantum confined microcavities, enabling the first observation of strong phase coherence between the two parametric species in momentum space. Our systematic analysis reveals that a quantum size effect in our confined microcavities as the microscopic mechanism for the observed anomalous enhancement of parametric scattering when system size scales down, highlighting the important role of quantum confinement and disorder in triggering exotic parametric interactions and applications for microcavity polaritons. Finally, we demonstrate the emergence of a polariton supersolid phase at room temperature in a strongly coherent parametric oscillator, characterized by a periodic density modulation in real space that indicates the breaking of translational symmetry.","manuscriptTitle":"Harnessing highly efficient coherent polariton parametric emission in quantum confined perovskite microcavities","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-07-14 03:15:54","doi":"10.21203/rs.3.rs-7076377/v1","editorialEvents":[],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"nature-communications","isNatureJournal":true,"hasQc":false,"allowDirectSubmit":false,"externalIdentity":"NCOMMS","sideBox":"Learn more about [Nature Communications](http://www.nature.com/ncomms/)","snPcode":"","submissionUrl":"https://mts-ncomms.nature.com/","title":"Nature Communications","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"ejp","reportingPortfolio":"Nature Communications","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"02ecc31e-91b7-462d-8569-7f71d81493f8","owner":[],"postedDate":"July 14th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[{"id":51358369,"name":"Physical sciences/Physics/Optical physics/Polaritons"},{"id":51358370,"name":"Physical sciences/Optics and photonics/Optical physics/Polaritons"}],"tags":[],"updatedAt":"2026-03-19T15:17:09+00:00","versionOfRecord":[],"versionCreatedAt":"2025-07-14 03:15:54","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7076377","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7076377","identity":"rs-7076377","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}