A Bell-Bloom Atomic Magnetic-Videorecorder with Global Shutter and Differential Readout

A Bell-Bloom Atomic Magnetic-Videorecorder with Global Shutter and Differential Readout | 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 A Bell-Bloom Atomic Magnetic-Videorecorder with Global Shutter and Differential Readout Zongmin Ma, Xinxin He, Haifeng Dong, Zeyu Hua, Hangfei Ye, Chenlu Xu, and 6 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8180645/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 22 Apr, 2026 Read the published version in Microsystems & Nanoengineering → Version 1 posted 8 You are reading this latest preprint version Abstract Weak magnetic video recording with warm atomic ensembles constitutes a non-cryogenic and non-contact methodology for the magnetic source identification and failure reproduction. However, the spatial resolution, imaging speed, and shooting mode from traditional optical-pumping systems have constrained the real recording for ever-changing magnetic phenomena. This work reports a 684-pixel Bell-Bloom atomic magnetic-videorecorder with the global shutter and two-dimensional differential readout, for the real recording of changing gradient fields, which implements the free Larmor precession of Cs atoms to infer local magnetic information, employs a high-speed dual-quadrant Complementary Metal Oxide Semiconductor (CMOS) sensor with the global shutter and the extra microlens focusing to simultaneously detect differential optical rotations on all pixels. Also, a digital micro-mirror device (DMD) is employed to weigh the pixel crosstalk and the spatial resolution, and to facilitate the one-to-one pairing of the profiles for each differential probe beam pair projected onto the two CMOS quadrants. Furthermore, the average sensitivity is demonstrated to be 194 pT/Hz^ [email protected] Hz, with a high spatial resolution of 137 μm × 137 μm and a frame rate of 205 fps in a field of view up to 5 mm × 2.6 mm. Finally, the magnetic distributions from a moving source have been experimentally measured and found to be in good agreement with the simulation results. Physical sciences/Optics and photonics/Applied optics/Optical sensors Physical sciences/Physics/Optical physics/Micro-optics Full Text Additional Declarations There is no conflict of interest Cite Share Download PDF Status: Published Journal Publication published 22 Apr, 2026 Read the published version in Microsystems & Nanoengineering → Version 1 posted Editorial decision: accept 10 Mar, 2026 Review # 2 received at journal 20 Dec, 2025 Reviewer # 2 agreed at journal 20 Dec, 2025 Review # 1 received at journal 01 Dec, 2025 Reviewer # 1 agreed at journal 30 Nov, 2025 Submission checks completed at journal 23 Nov, 2025 Editor assigned by journal 22 Nov, 2025 First submitted to journal 22 Nov, 2025 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. 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