{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T22:28:52Z","timestamp":1790116132384,"version":"4.0.1"},"reference-count":35,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T00:00:00Z","timestamp":1777939200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T00:00:00Z","timestamp":1777939200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2024YFB2808003"],"award-info":[{"award-number":["2024YFB2808003"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2021YFB2800104"],"award-info":[{"award-number":["2021YFB2800104"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]}],"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                    We propose and demonstrate a long\u2010period waveguide grating with tunable resonant wavelength and contrast based on hybrid polymer and thin\u2010film lithium niobate platform. The grating is formed in the polymer cladding through stress\u2010induced refractive index modulation, achieved by a periodic metal structure on the cladding. This metal structure also acts as a heater for thermo\u2010optic (TO) tuning and an electrode for electro\u2010optic (EO) tuning. Thanks to the bidirectional index change provided by the EO effect, the device allows either red or blue shift of the resonant wavelength and control of the resonant contrast. The fabricated device exhibits a resonant contrast of 12.38 (19.65)\u00a0dB at 1553.43 (1542.68)\u00a0nm for the\n                    <jats:italic>x<\/jats:italic>\n                    (\n                    <jats:italic>z<\/jats:italic>\n                    ) polarization, with EO tuning efficiencies of 20.2 (25.1)\u00a0pm\/V. Further annealing experiments reveal that its operation can switch from a stress\u2010dominated to a more linear, EO\u2010dominated regime. Consequently, applying +60\u00a0V increases the contrast from 24.18 to 31.86\u00a0dB, whereas \u221260\u00a0V completely suppresses the resonance; meanwhile, the EO tuning efficiency rises to 28.5\u00a0pm\/V. Additionally, the grating achieves a maximum TO tuning efficiency of 18.6\u00a0pm\/mW. Our proposed grating can be employed to implement tunable photonic devices in optical communications and information processing systems.\n                  <\/jats:p>","DOI":"10.1002\/nap2.70118","type":"journal-article","created":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T08:22:49Z","timestamp":1777969369000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Long\u2010Period Grating Formed by Residual Stress on Thin\u2010Film Lithium Niobate With Efficient Electro\u2010Optic and Thermo\u2010Optic Tuning"],"prefix":"10.1002","volume":"15","author":[{"given":"Jiayao","family":"Deng","sequence":"first","affiliation":[{"name":"School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Yao","sequence":"additional","affiliation":[{"name":"School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuzhe","family":"Sun","sequence":"additional","affiliation":[{"name":"School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yinglu","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China  Chengdu 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