{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T20:54:53Z","timestamp":1790888093198,"version":"4.1.0"},"reference-count":18,"publisher":"Optica Publishing Group","issue":"19","license":[{"start":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:00Z","timestamp":1790812800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:00Z","timestamp":1790812800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"Taighde \u00c9ireann - Research Ireland","award":["22\/RP-2TF10293"],"award-info":[{"award-number":["22\/RP-2TF10293"]}],"id":[{"id":"https:\/\/ror.org\/010t7sr36","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Irish Research Laboratory","id":[{"id":"https:\/\/ror.org\/05c347015","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,10,1]]},"abstract":"<jats:p>\n                    Acousto-optic imaging (AOI) combines light and ultrasound (US) to probe the optical properties inside a multiple scattering medium, such as biological tissue, with a resolution set by the ultrasound. However, in dynamic media like tissue, the motion of scatterers decorrelates the US-tagged optical field, broadening its spectral width and reducing the efficiency of holography-based detection schemes. Speckle decorrelation is usually considered a limitation, as it degrades the signal-to-noise ratio. Here, we show that, despite this, it can be exploited as a source of contrast. Using four-phase digital holography, we measured the spectral broadening of US-tagged light propagating through a scattering fluid flowing at controlled speeds through a tube embedded in an agar phantom. By sweeping a frequency shift of our reference wave over a 0\u2009kHz\u2013700\u2009kHz range, we determined spectral width going from 222\u2009kHz for a static fluid to 581\u2009kHz for a flow speed of 3\u2009ms\n                    <jats:italic\/>\n                    <jats:sup>(\u22121)<\/jats:sup>\n                    . This corresponds to a decorrelation time of the tagged field going from 0.72 \u00b5s to 0.27 \u00b5s. This decrease demonstrates that the spectral width of the acousto-optic signal carries quantitative information on local flow dynamics within the acoustic focus. These results suggest that, beyond the need to compensate for the associated loss of signal, decorrelation could be used as an additional, depth-selective contrast mechanism for the non-invasive characterization of flow dynamics in scattering media such as biological tissue.\n                  <\/jats:p>","DOI":"10.1364\/ol.613251","type":"journal-article","created":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T20:04:50Z","timestamp":1790885090000},"page":"5625","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Measurement of flow-dependent decorrelation times of scattering samples using acousto-optic light"],"prefix":"10.1364","volume":"51","author":[{"given":"Michael","family":"Amissah","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/007ecwd34","id-type":"ROR","asserted-by":"publisher"}]},{"name":"University College Cork"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5640-3122","authenticated-orcid":true,"given":"Stefan","family":"Andersson-Engels","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/007ecwd34","id-type":"ROR","asserted-by":"publisher"}]},{"name":"University College Cork"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2459-247X","authenticated-orcid":true,"given":"Baptiste","family":"Jayet","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/007ecwd34","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,10,1]]},"reference":[{"key":"ol-51-19-5625-R1","doi-asserted-by":"publisher","first-page":"6","DOI":"10.5114\/pdia.2014.40653","type":"journal-article","volume":"31","author":"Waszczykowska","year":"2014","journal-title":"Postep. Dermatol. Alergol."},{"key":"ol-51-19-5625-R2","doi-asserted-by":"publisher","first-page":"086004","DOI":"10.1117\/1.JBO.22.8.086004","type":"journal-article","volume":"22","author":"Jansen","year":"2017","journal-title":"J. Biomed. Opt."},{"key":"ol-51-19-5625-R3","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1016\/j.preteyeres.2017.11.003","type":"journal-article","volume":"64","author":"Spaide","year":"2018","journal-title":"Prog. Retin. Eye Res."},{"key":"ol-51-19-5625-R4","doi-asserted-by":"publisher","first-page":"2769","DOI":"10.1364\/BOE.5.002769","type":"journal-article","volume":"5","author":"Valdes","year":"2014","journal-title":"Biomed. Opt. Express"},{"key":"ol-51-19-5625-R5","doi-asserted-by":"publisher","first-page":"1275","DOI":"10.1364\/BOE.5.001275","type":"journal-article","volume":"5","author":"Varma","year":"2014","journal-title":"Biomed. Opt. 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Lett."},{"key":"ol-51-19-5625-R10","doi-asserted-by":"publisher","first-page":"32543","DOI":"10.1038\/s41598-025-18902-1","type":"journal-article","volume":"15","author":"Zabili\u016bt\u0117-Karali\u016bn\u0117","year":"2025","journal-title":"Sci. Rep."},{"key":"ol-51-19-5625-R11","doi-asserted-by":"publisher","first-page":"6484","DOI":"10.1364\/BOE.475449","type":"journal-article","volume":"13","author":"Thai","year":"2022","journal-title":"Biomed. Opt. Express"},{"key":"ol-51-19-5625-R12","doi-asserted-by":"publisher","first-page":"399","DOI":"10.1364\/OL.43.000399","type":"journal-article","volume":"43","author":"Bocoum","year":"2018","journal-title":"Opt. Lett."},{"key":"ol-51-19-5625-R13","doi-asserted-by":"publisher","first-page":"20622","DOI":"10.1364\/OE.22.020622","type":"journal-article","volume":"22","author":"Jayet","year":"2014","journal-title":"Opt. Express"},{"key":"ol-51-19-5625-R14","doi-asserted-by":"publisher","first-page":"5993","DOI":"10.1364\/OL.528953","type":"journal-article","volume":"49","author":"Figliolia","year":"2024","journal-title":"Opt. Lett."},{"key":"ol-51-19-5625-R15","doi-asserted-by":"publisher","first-page":"1846","DOI":"10.1364\/AO.56.001846","type":"journal-article","volume":"56","author":"Gross","year":"2017","journal-title":"Appl. Opt."},{"key":"ol-51-19-5625-R16","doi-asserted-by":"publisher","first-page":"1357","DOI":"10.1364\/ol.30.001357","type":"journal-article","volume":"30","author":"Gross","year":"2005","journal-title":"Opt. Lett."},{"key":"ol-51-19-5625-R17","doi-asserted-by":"publisher","first-page":"25931","DOI":"10.1038\/s41598-025-06138-y","type":"journal-article","volume":"15","author":"Kothuri","year":"2025","journal-title":"Sci. Rep."},{"key":"ol-51-19-5625-R18","doi-asserted-by":"publisher","author":"Amissah","year":"2026","DOI":"10.5281\/zenodo.21476191","type":"dataset"}],"container-title":["Optics Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/opg.optica.org\/viewmedia.cfm?URI=ol-51-19-5625&seq=0","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T20:04:52Z","timestamp":1790885092000},"score":1,"resource":{"primary":{"URL":"https:\/\/opg.optica.org\/abstract.cfm?URI=ol-51-19-5625"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,10,1]]},"references-count":18,"journal-issue":{"issue":"19","published-online":{"date-parts":[[2026]]},"published-print":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.1364\/ol.613251","relation":{},"ISSN":["0146-9592","1539-4794"],"issn-type":[{"value":"0146-9592","type":"print"},{"value":"1539-4794","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,10,1]]},"assertion":[{"value":"Optica Publishing Group","name":"publisher","label":"This article is maintained by"},{"value":"https:\/\/doi.org\/10.1364\/OL.613251","name":"articlelink","label":"Crossref DOI link to publisher maintained version"},{"value":"letter","name":"content_type","label":"Article type"},{"value":"Screened by Similarity Check","name":"cross_check","label":"Similarity check"},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"21 August 2026","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"19 September 2026","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"1 October 2026","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}},{"value":"Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article\u2019s title, journal citation, and DOI.","name":"copyright","label":"Copyright"}]}}