Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/101985
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dc.contributorDepartment of Electrical Engineeringen_US
dc.contributorMainland Development Officeen_US
dc.creatorLin, Yen_US
dc.creatorJin, Wen_US
dc.creatorYang, Fen_US
dc.creatorHo, HLen_US
dc.date.accessioned2023-09-27T02:01:00Z-
dc.date.available2023-09-27T02:01:00Z-
dc.identifier.isbn978-151061091-0en_US
dc.identifier.issn0277-786Xen_US
dc.identifier.urihttp://hdl.handle.net/10397/101985-
dc.description25th International Conference on Optical Fiber Sensors, OFS 2017, Jeju, 24-28 April 2017en_US
dc.language.isoenen_US
dc.publisherSPIE-International Society for Optical Engineeringen_US
dc.rightsCopyright 2017 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.en_US
dc.rightsThe following publication Yuechuan Lin, Wei Jin, Fan Yang, Hoi Lut Ho, "Pulsed photothermal interferometry for high sensitivity gas detection with hollow-core photonic bandgap fibre," Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032388 (23 April 2017) is available at https://doi.org/10.1117/12.2265498.en_US
dc.subjectOptical fibre sensor, photothermal interferometry, gas sensor, photonic crystal fibre, spectroscopyen_US
dc.titlePulsed photothermal interferometry for high sensitivity gas detection with hollow-core photonic bandgap fibreen_US
dc.typeConference Paperen_US
dc.identifier.volume10323en_US
dc.identifier.doi10.1117/12.2265498en_US
dcterms.abstractPulsed photothermal interferometry (PTI) gas sensor with hollow-core photonic bandgap fibre (HC-PBF) is demonstrated with a Sagnac interferometer-based phase detection system. Under the condition of constant peak pump power, the optimal pulse duration is found to be > 1:2 μs for detecting low-concentration of trace gases in nitrogen, limited by thermal conduction of gases within the hollow-core. Preliminary experiments with a 0.62-mlong HC-PBF gas cell, low peak power ( ~ 20:2mW) and a boxcar averager with 10k average times demonstrated a detection limit of 3:3 p:p:m acetylene. Detection limit down to ppb or lower is expected with high peak power pump pulses.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationProceedings of SPIE : the International Society for Optical Engineering, 2017, v. 10323, 1032388en_US
dcterms.isPartOfProceedings of SPIE : the International Society for Optical Engineeringen_US
dcterms.issued2017-
dc.identifier.scopus2-s2.0-85019154880-
dc.relation.conferenceInternational Conference on Optical Fiber Sensors [OFS]en_US
dc.identifier.eissn1996-756Xen_US
dc.identifier.artn1032388en_US
dc.description.validate202309 bcwhen_US
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberEE-0610-
dc.description.fundingSourceRGCen_US
dc.description.fundingSourceOthersen_US
dc.description.fundingTextNational Natural Science Foundation of China; The Hong Kong Polytechnic Universityen_US
dc.description.pubStatusPublisheden_US
dc.identifier.OPUS9594178-
dc.description.oaCategoryGreen (AAM)en_US
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