Optimization of Power in Pseudo-Nondiffracting Structured Laser Beams for Long-Distance Propagation

Optimization of Power in Pseudo-Nondiffracting Structured Laser Beams for Long-Distance Propagation | 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 Optimization of Power in Pseudo-Nondiffracting Structured Laser Beams for Long-Distance Propagation Martin Dušek, Rui Zhang, Hiroshi Kaji, Shunya Kitada, Jean-Christophe Gayde, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8560155/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 Structured laser beams (SLBs) are pseudo-nondiffracting beams with a narrow inner core (IC), whose size can be tuned by adjusting the parameters of the SLB generator. This work characterizes the power distribution of SLBs with different core sizes and explores strategies to increase the power concentrated in the IC. Experiments with beams propagating for 420 and 1000 m demonstrated that optimized illumination patterns can enhance IC power. For small-core SLBs, the IC power was increased by a factor of three through ring beam illumination, while for large-core SLBs, the power was more than doubled by decreasing the diameter of the illuminating Gaussian beam. The study further revealed that the IC power depends on the generator parameters and found optimal parameters that yield the maximum power. These results underline the potential of SLBs to provide intense narrow beams over propagation distances of hundreds of meters. Physical sciences/Engineering Physical sciences/Optics and photonics Full Text Additional Declarations No competing interests reported. Supplementary Files Supplementarymaterial1.mp4 Supplementarymaterial2.mp4 Supplementarymaterial3.mp4 Supplementarymaterial4.mp4 Supplementarymaterial5.jpg Supplementarymaterial6.jpg 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-8560155","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":578160993,"identity":"a3f38635-f3a0-4bd7-b158-06fa8e8bf4c3","order_by":0,"name":"Martin 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