Ultra-broadband hyperspectral diffraction imaging using a ptychographic probe

Ultra-broadband hyperspectral diffraction imaging using a ptychographic probe | 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 Ultra-broadband hyperspectral diffraction imaging using a ptychographic probe Baoqing SUN, Yikang He, Xianye Li, Shuanglong Bian, Pengcheng Wang, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7966557/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 Coherent diffractive imaging (CDI) is a powerful tool for X-ray nanoscopy. However, CDI's stringent coherence requirement has severely hindered its application under broadband illumination, which is increasingly desirable due to recent advances in attosecond science and laboratory-scale X-ray sources. Here we report a hyperspectral diffraction imaging (HDI) technique under ultra-broadband illumination. An approach termed ptychographic probe is designed to introduce spatial-spectral constraints for coherent modes decomposition. The feasibility of HDI is validated through simulation and experiments, demonstrating high performance. Under broadband illumination with a 60% bandwidth, holographic reconstructions across 34 spectral channels are achieved. Our HDI method establishes a comprehensive spectrophotography solution for broadband CDI, offering universal applicability to dispersive objects - those that exhibit varying spectral responses across different regions. It will significantly advance the implementation of CDI with table-top X-ray sources and attosecond lasers in areas such as ultrafast nanoscopy, materials science and biomedicine. Physical sciences/Optics and photonics/Optical techniques/Imaging and sensing Physical sciences/Physics/Optical physics/X-rays coherent diffraction imaging broadband coherent diffraction imaging X-ray diffraction imaging phase retrieval ptychography Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SupplementaryMaterial.pdf Supplementary materials 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. 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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-7966557","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":543686403,"identity":"1ac13473-5461-4156-b973-c86027d5ad9d","order_by":0,"name":"Baoqing 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