Polarimetry analysis and optical contrast of Sb₂S₃ phase change material

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dc.contributor.authorGutiérrez, Yael
dc.contributor.authorFernández-Pérez, Andrea
dc.contributor.authorRosales, Saúl A.
dc.contributor.authorCobianu, Cornel
dc.contributor.authorGheorghe, Marin
dc.contributor.authorModreanu, Mircea
dc.contributor.authorSaiz, José M.
dc.contributor.authorMoreno, Fernando
dc.contributor.authorLosurdo, Maria
dc.contributor.funderHorizon 2020en
dc.date.accessioned2022-03-21T10:30:10Z
dc.date.available2022-03-21T10:30:10Z
dc.date.issued2022-03-16
dc.date.updated2022-03-01T10:23:43Z
dc.description.abstractPhase-change materials (PCMs) are the cornerstone for the development of reconfigurable and programmable photonic devices. Sb2S3 has been recently proposed as an interesting PCM due to its low-losses in the visible and near-IR. Here, we report the use of imaging polarimetry and spectroscopic ellipsometry to reveal and directly measure the optical properties of Sb2S3 both in crystalline and amorphous states obtained upon crystallization by annealing in air of chemical bath deposited amorphous Sb2S3. The Mueller Matrix polarimetric analysis reveals the strong anisotropy of the Sb2S3 crystallites which crystallize in radial spherulitic domains in contrast to the optical isotropy of the amorphous films. A refractive index contrast of Δn = 0.5 is demonstrated while maintaining low-losses at telecommunications C-band, i.e., λ = 1550 nm.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGutiérrez, Y., Fernández-Pérez, A., Rosales, S. A., Cobianu, C., Gheorghe, M., Modreanu, M., Saiz, J. M., Moreno, F. and Losurdo, M. (2022) 'Polarimetry analysis and optical contrast of Sb₂S₃ phase change material', Optical Materials Express, 12(4), pp. 1531-1541. doi: 10.1364/OME.450781en
dc.identifier.doi10.1364/OME.450781en
dc.identifier.eissn2159-3930
dc.identifier.endpage1541en
dc.identifier.issued4en
dc.identifier.journaltitleOptical Materials Expressen
dc.identifier.startpage1531en
dc.identifier.urihttps://hdl.handle.net/10468/12943
dc.identifier.volume12en
dc.language.isoenen
dc.publisherOptica Publishing Groupen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::RIA/899598/EU/Active Optical Phase-Change Plasmonic Transdimensional Systems Enabling Femtojoule and Femtosecond Extreme Broadband Adaptive Reconfigurable Devices/PHEMTRONICSen
dc.rights© 2022, Optical Society of America under the terms of the OSA Open Access Publishing Agreement.en
dc.subjectPolarimetry analysisen
dc.subjectPhase change materialen
dc.subjectSb₂S₃en
dc.titlePolarimetry analysis and optical contrast of Sb₂S₃ phase change materialen
dc.typeArticle (peer-reviewed)en
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