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However, existing designs can only toggle between computing and noncomputing modes, falling short of achieving truly reconfigurable analog computing function. In this work, a reconfigurable transmission\u2010type analog computing metasurface based on the electro\u2010optic material thin film lithium niobate is demonstrated in the telecommunication band, aiming to flexibly control the operation functions. Through the dynamic regulation of the external voltages applied to individual structure units, the device transitions its function from first\u2010order differentiation to either second\u2010order differentiation or integration operations. The results indicate that the spatial transfer functions can be precisely engineered to meet the requirements for ideal differentiation and integration operations. This methodology facilitates high\u2010precision spatial signal processing, as validated by inspecting Gaussian signals. Furthermore, the theoretical evaluation based on rectangular signal and complex letter pattern inputs establishes the spatial edge detection resolution of approximately 10\u00a0\u03bcm for the second\u2010order differentiation operation. The reconfigurable lithium niobate metasurface signal processor demonstrates considerable potential for applications in fields such as remote sensing and high\u2010speed image processing.<\/jats:p>","DOI":"10.1002\/nap2.70131","type":"journal-article","created":{"date-parts":[[2026,5,9]],"date-time":"2026-05-09T07:20:58Z","timestamp":1778311258000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Reconfigurable Analog Computing Metasurfaces Based on Thin Film Lithium Niobate"],"prefix":"10.1002","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3682-8657","authenticated-orcid":false,"given":"Huan","family":"Chen","sequence":"first","affiliation":[{"name":"School of Physics Xidian University  Xi'an China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinghao","family":"Duan","sequence":"additional","affiliation":[{"name":"School of Physics Xidian University  Xi'an China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-6224-5956","authenticated-orcid":false,"given":"Mingbo","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Physics Xidian University  Xi'an China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xin","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Physics Xidian University  Xi'an China"},{"name":"Guangzhou Institute of Technology Xidian University  Guangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junli","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Physics Xidian University  Xi'an 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