{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T01:41:26Z","timestamp":1791250886075,"version":"4.1.0"},"reference-count":51,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T00:00:00Z","timestamp":1777075200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T00:00:00Z","timestamp":1777075200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Nanophotonics"],"published-print":{"date-parts":[[2026,5,13]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Quasi\u2010bound states in the continuum (quasi\u2010BIC, Q\u2010BIC) metasurfaces, endowed with their record high Q\u2010factor, promise paradigm\u2010shifts in applications of lasing, biosensing, and spectral filtering. However, their resonance is frozen, once the nanostructure is fixed, constraining real\u2010world deployability. We report an electrically reconfigurable quasi\u2010BIC metasurface that monolithically integrates barium titanate (BTO and BaTiO\n                    <jats:sub>3<\/jats:sub>\n                    ) electro\u2010optic material and demonstrate its deployment as a high\u2010performance dispersion engine platform of a chip\u2010scale miniaturized intensity\u2010modulator and computational reconstructive spectrometer. By concurrently hosting a symmetry\u2010protected BIC and a guided\u2010mode resonance, the metasurface triggers an electromagnetically induced transparency (EIT) destructive interference in the near\u2010infrared, delivering a bandwidth of \u03bb\/2128 narrow band\u2010stop filter. Systematic analysis of structural parameters reveals mode coupling dynamics. Leveraging the Pockels effect and mode confinement in BTO, a linear tuning slope of 1.79\u00a0nm\/V is achieved. Leveraging the metasurface as a voltage\u2010scanned tunable filter, we furtherly demonstrate a 250\u00a0\u03bcm\n                    <jats:sup>2<\/jats:sup>\n                    miniaturized spectrometer. A spectral reconstruction optimization algorithm recovers spectra with 0.2\u00a0nm resolution, 99% fidelity, and 89.47% optical throughput. These results offer a technical pathway toward miniaturized spectral engines combining sub\u2010nanometer resolution with chip\u2010scale portability. A scalable platform is established for active metadevices with reconfigurable Q\u2010factor and spectral agility.\n                  <\/jats:p>","DOI":"10.1002\/nap2.70104","type":"journal-article","created":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T08:36:06Z","timestamp":1777106166000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Electrically Reconfigurable Quasi\u2010BIC Metadevices Enabled by Integrated Barium Titanate"],"prefix":"10.1002","volume":"15","author":[{"given":"Jingyi","family":"Xia","sequence":"first","affiliation":[{"name":"Institute of Semiconductors Chinese Academy of Sciences  Beijing China"},{"name":"College of Materials Science and Opto\u2010Electronic Technology University of Chinese Academy of Sciences  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jietao","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Intelligent Photonics Nankai University  Tianjin China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Semiconductors Chinese Academy of Sciences  Beijing China"},{"name":"College of Materials Science and Opto\u2010Electronic Technology University of Chinese Academy of Sciences  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhi","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Semiconductors Chinese Academy of Sciences  Beijing China"},{"name":"College of Materials Science and Opto\u2010Electronic Technology University of Chinese Academy of Sciences  Beijing China"},{"name":"State Key Laboratory of Optoelectronic Materials and Devices Institute of Semiconductors Chinese Academy of Sciences  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Wei","sequence":"additional","affiliation":[{"name":"Institute of Semiconductors Chinese Academy of Sciences  Beijing China"},{"name":"College of Materials Science and Opto\u2010Electronic Technology University of Chinese Academy of Sciences  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guofeng","family":"Song","sequence":"additional","affiliation":[{"name":"Institute of Semiconductors Chinese Academy of Sciences  Beijing China"},{"name":"College of Materials Science and Opto\u2010Electronic Technology University of Chinese Academy of Sciences  Beijing 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