{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T10:27:34Z","timestamp":1785234454112,"version":"3.55.0"},"reference-count":25,"publisher":"Optica Publishing Group","issue":"3","license":[{"start":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T00:00:00Z","timestamp":1769558400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T00:00:00Z","timestamp":1769558400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of\n\t\t\t\t\t\tChina","doi-asserted-by":"publisher","award":["62105376"],"award-info":[{"award-number":["62105376"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007162","name":"Guangdong Provincial Department of\n\t\t\t\t\t\tScience and Technology","doi-asserted-by":"publisher","award":["2021QN02X488"],"award-info":[{"award-number":["2021QN02X488"]}],"id":[{"id":"10.13039\/501100007162","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007162","name":"Guangdong Provincial Department of\n\t\t\t\t\t\tScience and Technology","doi-asserted-by":"publisher","award":["2021ZT09X070"],"award-info":[{"award-number":["2021ZT09X070"]}],"id":[{"id":"10.13039\/501100007162","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,2,1]]},"abstract":"<jats:p>Controlling spontaneous emission from electric dipole (ED) and magnetic\n\t\t\t\t\tdipole (MD) is crucial for quantum light sources, molecular sensing,\n\t\t\t\t\tand integrated quantum photonics. Enhancing these processes relies on\n\t\t\t\t\tintense local fields to boost the local density of optical states\n\t\t\t\t\t(LDOS). While conventional plasmonic structures provide strong fields,\n\t\t\t\t\ttheir performance is severely limited by inherent ohmic losses. We\n\t\t\t\t\tdesigned and experimentally verified a germanium-based metasurface\n\t\t\t\t\texciting a nonradiative anapole state to overcome this limitation.\n\t\t\t\t\tThis approach generates extreme near-field confinement, significantly\n\t\t\t\t\tstrengthening light\u2013matter interactions. We numerically\n\t\t\t\t\tdemonstrate a dual-channel platform simultaneously accelerating ED and\n\t\t\t\t\tMD emissions at spatially distinct hot spots, reaching Purcell factors\n\t\t\t\t\t(PFs) of 6057 and 2272, respectively. The quality factor, field\n\t\t\t\t\tenhancement, and PF of the resonator are precisely tunable by\n\t\t\t\t\tadjusting its geometric parameters. This work provides a platform for\n\t\t\t\t\tdual-dipole emission engineering, paving the way for high-performance\n\t\t\t\t\tquantum light sources, molecular fingerprinting, and on-chip quantum\n\t\t\t\t\tdevices in the mid-infrared.<\/jats:p>","DOI":"10.1364\/ol.581802","type":"journal-article","created":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T19:00:11Z","timestamp":1768417211000},"page":"708","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Dual-channel spontaneous emission enhancement metasurfaces in the mid-infrared based on an anapole state"],"prefix":"10.1364","volume":"51","author":[{"given":"Jinwen","family":"Lv","sequence":"first","affiliation":[{"name":"Sun Yat-sen University"},{"name":"Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ye","family":"Fan","sequence":"additional","affiliation":[{"name":"Sun Yat-sen University"},{"name":"Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiqing","family":"Liu","sequence":"additional","affiliation":[{"name":"Sun Yat-sen University"},{"name":"Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zaiyang","family":"Zheng","sequence":"additional","affiliation":[{"name":"Sun Yat-sen University"},{"name":"Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0265-6228","authenticated-orcid":true,"given":"Zhengji","family":"Xu","sequence":"additional","affiliation":[{"name":"Sun Yat-sen University"},{"name":"Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,1,28]]},"reference":[{"key":"ol-51-3-708-R1","doi-asserted-by":"publisher","first-page":"100060","DOI":"10.1016\/j.chip.2023.100060","type":"journal-article","volume":"2","author":"Liu","year":"2023","journal-title":"Chip"},{"key":"ol-51-3-708-R2","doi-asserted-by":"publisher","first-page":"e2313589","DOI":"10.1002\/adma.202313589","type":"journal-article","volume":"36","author":"Ma","year":"2024","journal-title":"Adv.\n\t\t\t\t\tMater."},{"key":"ol-51-3-708-R3","doi-asserted-by":"publisher","first-page":"1869","DOI":"10.1364\/OL.543288","type":"journal-article","volume":"50","author":"Lis S","year":"2025","journal-title":"Opt. 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All rights,\n\t\t\t\t\tincluding for text and data mining (TDM), Artificial Intelligence (AI)\n\t\t\t\t\ttraining, and similar technologies, are\n\t\t\t\t\treserved.","name":"copyright","label":"Copyright"}]}}