Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/96441
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dc.contributorDepartment of Electronic and Information Engineeringen_US
dc.contributorDepartment of Electrical Engineeringen_US
dc.contributorPhotonics Research Centreen_US
dc.creatorNoman, AAen_US
dc.creatorDash, JNen_US
dc.creatorCheng, Xen_US
dc.creatorTam, HYen_US
dc.creatorYu, Cen_US
dc.date.accessioned2022-12-07T02:54:54Z-
dc.date.available2022-12-07T02:54:54Z-
dc.identifier.urihttp://hdl.handle.net/10397/96441-
dc.language.isoenen_US
dc.publisherOptical Society of Americaen_US
dc.rights© 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement (https://opg.optica.org/library/license_v2.cfm#VOR-OA). Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.en_US
dc.rightsThe following publication Al Noman, A., Dash, J. N., Cheng, X., Tam, H. Y., & Yu, C. (2022). PCF based modal interferometer for lead ion detection. Optics Express, 30(4), 4895-4904 is available at https://doi.org/10.1364/OE.447272.en_US
dc.titlePCF based modal interferometer for lead ion detectionen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage4895en_US
dc.identifier.epage4904en_US
dc.identifier.volume30en_US
dc.identifier.issue4en_US
dc.identifier.doi10.1364/OE.447272en_US
dcterms.abstractA compact, reliable, and fast responsive PCF (photonic crystal fiber) based modal interferometric sensor for lead ion detection is proposed and experimentally demonstrated. The sensor has been fabricated by splicing a small section of PCF with SMF (single mode fiber) followed by collapsing the air holes of PCF at its tip. The interferometer is dip coated with chitosan-PVA (polyvinyl alcohol) and glutathione functionalized gold nanoparticles. Three probes have been fabricated, and the maximum sensitivity has been found to be 0.031 nm/ppb for lead ions whereas the detection range has been considered from 0 ppb to 50 ppb. The probe has been found to have a faster response time of ∼ 10 s. Furthermore, the sensor has been found to be less responsive towards other heavy metal ions, thereby demonstrating its selectivity towards lead ions. Besides, a section of FBG (fiber Bragg grating) has been embedded into the interferometer and the temperature response of FBG peak along with interference spectra has been investigated for better accuracy.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationOptics express, 14 Feb. 2022, v. 30, no. 4, p. 4895-4904en_US
dcterms.isPartOfOptics expressen_US
dcterms.issued2022-02-14-
dc.identifier.scopus2-s2.0-85124024600-
dc.identifier.eissn1094-4087en_US
dc.description.validate202212 bckwen_US
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_Scopus/WOS-
dc.description.pubStatusPublisheden_US
dc.description.oaCategoryVoR alloweden_US
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