{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,25]],"date-time":"2026-10-25T03:17:35Z","timestamp":1792898255347,"version":"4.5.0"},"reference-count":32,"publisher":"Optica Publishing Group","issue":"17","license":[{"start":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T00:00:00Z","timestamp":1787702400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T00:00:00Z","timestamp":1787702400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001809","name":"Natural Science Foundation of\n\t\t\t\t\t\tChina","doi-asserted-by":"crossref","award":["62505284"],"award-info":[{"award-number":["62505284"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"Natural Science Foundation of\n\t\t\t\t\t\tChina","doi-asserted-by":"crossref","award":["42575146"],"award-info":[{"award-number":["42575146"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Baima Lake Laboratory Joint Fund of the\n\t\t\t\t\t\tZhejiang provincial Natural Science Foundation of\n\t\t\t\t\t\tChina","award":["LBMHZ25F050002"],"award-info":[{"award-number":["LBMHZ25F050002"]}]},{"name":"Zhejiang Provincial Natural Science\n\t\t\t\t\t\tFoundation of China under Grant","award":["LQ22F050007"],"award-info":[{"award-number":["LQ22F050007"]}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,9,1]]},"abstract":"<jats:p>\n                    Despite the urgent need for high-sensitivity, fast-response,\n\t\t\t\t\tambient-temperature CO\n                    <jats:sub>2<\/jats:sub>\n                    sensing in environmental,\n\t\t\t\t\tindustrial, and biomedical applications, conventional optical\n\t\t\t\t\tplatforms suffer from weak light\u2013matter interactions and poor signal\n\t\t\t\t\tcontrast. Here, we propose and demonstrate a highly sensitive\n\t\t\t\t\tCO\n                    <jats:sub>2<\/jats:sub>\n                    gas sensor based on a metafiber platform integrated\n\t\t\t\t\twith a functional polymer thin film. The sensor consists of a gold\n\t\t\t\t\tnanohole array fabricated on the core of a single-mode fiber jumper\n\t\t\t\t\tusing physical vapor deposition and focused ion beam milling, followed\n\t\t\t\t\tby dip-coating of a polyhexamethylene biguanide (PHMB) layer as the\n\t\t\t\t\tCO\n                    <jats:sub>2<\/jats:sub>\n                    -sensitive material. Finite-element simulations reveal\n\t\t\t\t\tpronounced electric field enhancement at the nanohole edges and a\n\t\t\t\t\trefractive-index sensitivity of \u223c600\u202fnm\/RIU. Experimental\n\t\t\t\t\tcharacterizations show a CO\n                    <jats:sub>2<\/jats:sub>\n                    sensitivity of 5.77\u202fpm\/ppm in\n\t\t\t\t\tthe concentration range of 200\u2013600\u202fppm, with response and recovery\n\t\t\t\t\ttimes of about 4.5\u202fmin and 7\u202fmin, respectively. The sensor also\n\t\t\t\t\texhibits good repeatability and stability over consecutive sensing\n\t\t\t\t\tcycles. This metafiber-based architecture provides a promising and\n\t\t\t\t\tscalable strategy for developing miniaturized, high-performance\n\t\t\t\t\toptical fiber gas sensors.\n                  <\/jats:p>","DOI":"10.1364\/ol.607837","type":"journal-article","created":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T16:00:10Z","timestamp":1786377610000},"page":"4924","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Metafibers for highly sensitive carbon dioxide sensing"],"prefix":"10.1364","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-9726-4757","authenticated-orcid":true,"given":"Rujun","family":"Zhou","sequence":"first","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mengyu","family":"Shi","sequence":"additional","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zuxi","family":"Ouyang","sequence":"additional","affiliation":[{"name":"Westlake University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peishuai","family":"Wang","sequence":"additional","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Wang","sequence":"additional","affiliation":[{"name":"Zhejiang University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunlian","family":"Ding","sequence":"additional","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Delin","family":"You","sequence":"additional","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9500-552X","authenticated-orcid":true,"given":"Qiang","family":"Ling","sequence":"additional","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhangwei","family":"Yu","sequence":"additional","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinyu","family":"Sun","sequence":"additional","affiliation":[{"name":"Westlake University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9084-1521","authenticated-orcid":true,"given":"Ding","family":"Zhao","sequence":"additional","affiliation":[{"name":"Westlake University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min","family":"Qiu","sequence":"additional","affiliation":[{"name":"Westlake University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daru","family":"Chen","sequence":"additional","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2649-0127","authenticated-orcid":true,"given":"Si","family":"Luo","sequence":"additional","affiliation":[{"name":"Zhejiang Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,8,26]]},"reference":[{"key":"ol-51-17-4924-R1","doi-asserted-by":"publisher","first-page":"32","DOI":"10.1038\/d41586-025-03981-x","type":"journal-article","volume":"649","author":"McKinley","year":"2026","journal-title":"Nature"},{"key":"ol-51-17-4924-R2","doi-asserted-by":"publisher","first-page":"14856","DOI":"10.1038\/ncomms14856","type":"journal-article","volume":"8","author":"Walsh","year":"2017","journal-title":"Nat.\n\t\t\t\t\tCommun."},{"key":"ol-51-17-4924-R3","doi-asserted-by":"publisher","first-page":"72","DOI":"10.1038\/s41467-021-27733-3","type":"journal-article","volume":"13","author":"Escobedo","year":"2022","journal-title":"Nat.\n\t\t\t\t\tCommun."},{"key":"ol-51-17-4924-R4","doi-asserted-by":"publisher","first-page":"152827","DOI":"10.1016\/j.apsusc.2022.152827","type":"journal-article","volume":"586","author":"Jung","year":"2022","journal-title":"Appl. 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All rights, including\n\t\t\t\t\tfor text and data mining (TDM), Artificial Intelligence (AI) training,\n\t\t\t\t\tand similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}