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All-fiber ellipsometer for nanoscale dielectric coatings
dc.creator | Imas González, José Javier | es_ES |
dc.creator | Matías Maestro, Ignacio | es_ES |
dc.creator | Del Villar, Ignacio | es_ES |
dc.creator | Ozcariz Celaya, Aritz | es_ES |
dc.creator | Ruiz Zamarreño, Carlos | es_ES |
dc.creator | Albert, Jacques | es_ES |
dc.date.accessioned | 2023-09-14T14:32:32Z | |
dc.date.available | 2023-09-14T14:32:32Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | Imas, J. J., Matías, I. R., Del Villar, I., Ozcáriz, A., Zamarreño, C. R., Albert, J. (2023) All-fiber ellipsometer for nanoscale dielectric coatings. Opto-Electronic Advances, 6(11), 1-13. https://doi.org/10.29026/oea.2023.230048. | en |
dc.identifier.issn | 2096-4579 | |
dc.identifier.uri | https://hdl.handle.net/2454/46338 | |
dc.description.abstract | Multiple mode resonance shifts in tilted fiber Bragg gratings (TFBGs) are used to simultaneously measure the thickness and the refractive index of TiO2 thin films formed by Atomic Layer Deposition (ALD) on optical fibers. This is achieved by comparing the experimental wavelength shifts of 8 TFBG resonances during the deposition process with simulated shifts from a range of thicknesses (T) and values of the real part of the refractive index (n). The minimization of an error function computed for each (n, T) pair then provides a solution for the thickness and refractive index of the deposited film and, a posteriori, to verify the deposition rate throughout the process from the time evolution of the wavelength shift data. Validations of the results were carried out with a conventional ellipsometer on flat witness samples deposited simultaneously with the fiber and with scanning electron measurements on cut pieces of the fiber itself. The final values obtained by the TFBG (n = 2.25, final thickness of 185 nm) were both within 4% of the validation measurements. This approach provides a method to measure the formation of nanoscale dielectric coatings on fibers in situ for applications that require precise thicknesses and refractive indices, such as the optical fiber sensor field. Furthermore, the TFBG can also be used as a process monitor for deposition on other substrates for deposition methods that produce uniform coatings on dissimilar shaped substrates, such as ALD. | en |
dc.description.sponsorship | The authors would like to acknowledge the Spanish Ministry of Universities the support of this work through 260 FPU18/03087 grant (Formación de Profesorado Universitario) and the Spanish Ministry of Science and Innovation 261 PID2019-106231RB-I00 TEC Research project, as well as NSERC under Grant RGPIN-2019-06255. | en |
dc.format.mimetype | application/pdf | en |
dc.format.mimetype | application/mp4 | en |
dc.language.iso | eng | en |
dc.publisher | Chinese Academy of Sciences | en |
dc.relation.ispartof | Opto-Electronic Advances 6, 230048 (2023) | en |
dc.rights | © The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License. | en |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | Tilted fiber Bragg grating (TFBG) | en |
dc.subject | Mode transition | en |
dc.subject | Ellipsometer | en |
dc.title | All-fiber ellipsometer for nanoscale dielectric coatings | en |
dc.type | Artículo / Artikulua | es |
dc.type | info:eu-repo/semantics/article | en |
dc.date.updated | 2023-09-14T14:03:50Z | |
dc.contributor.department | Ingeniería Eléctrica, Electrónica y de Comunicación | es_ES |
dc.contributor.department | Institute of Smart Cities - ISC | en |
dc.contributor.department | Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren | eu |
dc.rights.accessRights | Acceso abierto / Sarbide irekia | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |
dc.identifier.doi | 10.29026/oea.2023.230048 | |
dc.relation.projectID | info:eu-repo/grantAgreement/MICIU/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FPU18%2F03087 | en |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106231RB-I00/ES/ | en |
dc.relation.publisherversion | https://doi.org/10.29026/oea.2023.230048 | |
dc.type.version | Versión publicada / Argitaratu den bertsioa | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |