{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T16:45:59Z","timestamp":1785775559262,"version":"3.56.0"},"reference-count":18,"publisher":"Optica Publishing Group","issue":"16","license":[{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"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":"crossref","award":["12172200"],"award-info":[{"award-number":["12172200"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007129","name":"Natural Science Foundation of Shandong\n\t\t\t\t\t\tProvince","doi-asserted-by":"crossref","award":["ZR2025MS17"],"award-info":[{"award-number":["ZR2025MS17"]}],"id":[{"id":"10.13039\/501100007129","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Open Fund of Shanghai Key Laboratory of\n\t\t\t\t\t\tEnergy Engineering Mechanics"}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,8,15]]},"abstract":"<jats:p>For composite panels exhibiting dissimilar geometric characteristics or\n\t\t\t\t\tasymmetric damage distributions on opposing surfaces, distinct\n\t\t\t\t\tvibration modes may emerge on each surface at the same excitation\n\t\t\t\t\tfrequency. To address this challenge, this Letter proposes a dual-side\n\t\t\t\t\tamplitude-fluctuation electronic speckle interferometry (DAF-ESPI)\n\t\t\t\t\tsystem capable of simultaneously characterizing the vibration behavior\n\t\t\t\t\ton both surfaces of a panel. The proposed system consists of two\n\t\t\t\t\tMichelson-type interferometric configurations symmetrically arranged\n\t\t\t\t\ton opposite sides of the specimen, enabling synchronous acquisition of\n\t\t\t\t\tthe vibration modes on both surfaces. The feasibility of the system is\n\t\t\t\t\tfirst validated through experiments on an aluminum alloy panel and\n\t\t\t\t\tsubsequently demonstrated on honeycomb sandwich panels containing\n\t\t\t\t\tvarious internal defects. Experimental results confirm that the\n\t\t\t\t\tDAF-ESPI system provides a comprehensive understanding of the\n\t\t\t\t\tpanel\u2019s vibration characteristics, highlighting its potential\n\t\t\t\t\tas a practical tool for internal defect detection in composite\n\t\t\t\t\tstructures.<\/jats:p>","DOI":"10.1364\/ol.608514","type":"journal-article","created":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T14:00:09Z","timestamp":1784642409000},"page":"4460","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Dual-side amplitude-fluctuation ESPI for simultaneous vibration-mode characterization of composite panels"],"prefix":"10.1364","volume":"51","author":[{"given":"Yaqi","family":"Wang","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02mr3ar13","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuze","family":"Chen","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02mr3ar13","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shunshun","family":"Sui","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02mr3ar13","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yandong","family":"Wang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02mr3ar13","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0127-695X","authenticated-orcid":true,"given":"Xiangjun","family":"Dai","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02mr3ar13","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,8,3]]},"reference":[{"key":"ol-51-16-4460-R1","doi-asserted-by":"publisher","first-page":"111721","DOI":"10.1016\/j.ymssp.2024.111721","type":"journal-article","volume":"222","author":"Chen","year":"2025","journal-title":"Mech. 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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"}]}}