{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:21:24Z","timestamp":1760242884881,"version":"build-2065373602"},"reference-count":27,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2016,8,31]],"date-time":"2016-08-31T00:00:00Z","timestamp":1472601600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Museo Storico e Centro Ricerche e Studi &quot;E.Fermi&quot;","award":["PIHH"],"award-info":[{"award-number":["PIHH"]}]},{"name":"FIR","award":["RBFR122KL1"],"award-info":[{"award-number":["RBFR122KL1"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This work shows the improvements in the sensing capabilities and precision of an Optical Microbubble Resonator due to the introduction of an encaging poly(methyl methacrylate) (PMMA) box. A frequency fluctuation parameter \u03c3 was defined as a score of resonance stability and was evaluated in the presence and absence of the encaging system and in the case of air- or water-filling of the cavity. Furthermore, the noise interference introduced by the peristaltic and the syringe pumping system was studied. The measurements showed a reduction of \u03c3 in the presence of the encaging PMMA box and when the syringe pump was used as flowing system.<\/jats:p>","DOI":"10.3390\/s16091405","type":"journal-article","created":{"date-parts":[[2016,8,31]],"date-time":"2016-08-31T13:11:45Z","timestamp":1472649105000},"page":"1405","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Resonance Frequency of Optical Microbubble Resonators: Direct Measurements and Mitigation of Fluctuations"],"prefix":"10.3390","volume":"16","author":[{"given":"Alessandro","family":"Cosci","sequence":"first","affiliation":[{"name":"Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Piazza del Viminale 1, Rome 00184, Italy"},{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"given":"Simone","family":"Berneschi","sequence":"additional","affiliation":[{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0002-2977","authenticated-orcid":false,"given":"Ambra","family":"Giannetti","sequence":"additional","affiliation":[{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"given":"Daniele","family":"Farnesi","sequence":"additional","affiliation":[{"name":"Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Piazza del Viminale 1, Rome 00184, Italy"},{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"given":"Franco","family":"Cosi","sequence":"additional","affiliation":[{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2689-5952","authenticated-orcid":false,"given":"Francesco","family":"Baldini","sequence":"additional","affiliation":[{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"given":"Gualtiero","family":"Nunzi Conti","sequence":"additional","affiliation":[{"name":"Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Piazza del Viminale 1, Rome 00184, Italy"},{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4838-2197","authenticated-orcid":false,"given":"Silvia","family":"Soria","sequence":"additional","affiliation":[{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3759-7512","authenticated-orcid":false,"given":"Andrea","family":"Barucci","sequence":"additional","affiliation":[{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"given":"Giancarlo","family":"Righini","sequence":"additional","affiliation":[{"name":"Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Piazza del Viminale 1, Rome 00184, Italy"},{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]},{"given":"Stefano","family":"Pelli","sequence":"additional","affiliation":[{"name":"Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Piazza del Viminale 1, Rome 00184, Italy"},{"name":"IFAC-CNR, Istituto di Fisica Applicata \u201cNello Carrara\u201d, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2016,8,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"898","DOI":"10.1364\/OL.35.000898","article-title":"Optical microbubble resonator","volume":"35","author":"Sumetsky","year":"2010","journal-title":"Opt. 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