Ultra-sensitive refractive index sensing using a hybrid photonic crystal external cavity laser and the optical heterodyne technique

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dc.contributor.authorOliveira, Taynaraen
dc.contributor.authorIadanza, Simoneen
dc.contributor.authorVorobev, A. S.en
dc.contributor.authorKotlyar, Maria V.en
dc.contributor.authorO'Faolain, Liamen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderHorizon 2020en
dc.date.accessioned2025-08-25T14:14:25Z
dc.date.available2025-08-25T14:14:25Z
dc.date.issued2025-04-17en
dc.description.abstractThis study presents a breakthrough in refractive index sensing by combining a silicon nitride 1D photonic crystal cavity in a hybrid external cavity laser with the optical heterodyne technique. Achieving ~10⁻⁷ RIU detection limit, which represents 400x improvement in detection capability over existing highsensitivity devices.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationOliveira, T.A., Iadanza, S., Vorobev, A.S., Kotlyar, M.V. and O'Faolain, L. (2025) 'Ultra-sensitive refractive index sensing using a hybrid photonic crystal external cavity laser and the optical heterodyne technique', IEEE Silicon Photonics Conference (SiPhotonics), London, England 14-17 April, pp. 1-2.en
dc.identifier.endpage2en
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/17804
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.ispartof2025 IEEE Silicon Photonics Conference, London, England 14-17 April 2025.en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/Research Centres Programme::Phase 2/12/RC/2276_P2/IE/IPIC_Phase 2/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/Frontiers for the Future::Awards/21/FFP-A/10002/IE/MetaSPECS- Metasurfaces and photonic integrated circuits for enhanced photothermal SPECtroScopy/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/ERC Support Programme/16/ERCS/3838/IE/SFI ERC Support Programme/en
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::ERC::ERC-POC-LS/899774/EU/HEterodyne RefraCtive index sensor Using photonic crystal LaSers/HERCULESen
dc.rights© 2025, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectPhotonic Crystal Cavity (PhC)en
dc.subjectHybrid laseren
dc.subjectHeterodyneen
dc.subjectDetection limit (DL)en
dc.subject~Tyndall National Institute - Journal Articles~en
dc.titleUltra-sensitive refractive index sensing using a hybrid photonic crystal external cavity laser and the optical heterodyne techniqueen
dc.typeConference itemen
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