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Opt."],"published-print":{"date-parts":[[2026,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>We investigate, both experimentally and theoretically, photoluminescence (PL) spectra of J-aggregates (J-agg) covering silver nanorods (AgNRs). When these hybrid nanoparticles (h-NPs), J-agg@AgNRs, hereafter referred to as h-NPs, are deposited on the surface of a spherical microcavity (MC), their non-resonantly excited PL spectra show a series of sharp resonances in the broad spectral range of 550\u2013650\u2009nm, characterized by Fano-type lineshapes. We develop a semi-phenomenological model based on coupled-oscillator equations, which explains the observed spectra of the h-NPs\/MC system. In particular, we show that the complex Fano-type lineshapes are due to effective interaction of various whispering gallery modes of the microsphere, coupled to the h-NP emitters. Our experimental results and their understanding qualify the investigated hybrid structure as a sensitive and controllable system, suitable for applications.<\/jats:p>","DOI":"10.1088\/2040-8986\/ae2d6c","type":"journal-article","created":{"date-parts":[[2025,12,16]],"date-time":"2025-12-16T22:49:17Z","timestamp":1765925357000},"page":"015004","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Fano resonances in the emission spectra of J-aggregate-covered plasmonic nanorods attached to a spherical cavity"],"prefix":"10.1088","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4551-9343","authenticated-orcid":false,"given":"Diogo","family":"Cunha","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7972-5642","authenticated-orcid":true,"given":"Adam","family":"Olejniczak","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8556-2891","authenticated-orcid":true,"given":"Alba","family":"Jumbo-Nogales","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0111-2920","authenticated-orcid":false,"given":"Yury","family":"Rakovich","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2930-9434","authenticated-orcid":true,"given":"Mikhail I","family":"Vasilevskiy","sequence":"additional","affiliation":[]}],"member":"266","published-online":{"date-parts":[[2026,1,12]]},"reference":[{"key":"joptae2d6cbib1","first-page":"pp 839","type":"book","article-title":"Spontaneous emission probabilities at radio frequencies","author":"Purcell","year":"1995"},{"key":"joptae2d6cbib2","doi-asserted-by":"publisher","first-page":"459","DOI":"10.1038\/nphoton.2012.112","type":"journal-article","volume":"6","author":"Russell","year":"2012","journal-title":"Nat. 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