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dc.contributor.authorMedwell, P.en
dc.contributor.authorChan, Q.en
dc.contributor.authorKalt, P.en
dc.contributor.authorAlwahabi, Z.en
dc.contributor.authorDally, B.en
dc.contributor.authorNathan, G.en
dc.identifier.citationApplied Optics, 2009; 48(6):1237-1248en
dc.description.abstractThis work aims to advance understanding of the coupling between temperature and soot. The ability to image temperature using the two-line atomic fluorescence (TLAF) technique is demonstrated. Previous TLAF theory is extended from linear excitation into the nonlinear fluence regime. Nonlinear regime two-line atomic fluorescence (NTLAF) provides superior signal and reduces single-shot uncertainty from 250 K for conventional TLAF down to 100 K. NTLAF is shown to resolve the temperature profile across the stoichiometric envelope for hydrogen, ethylene, and natural gas flames, with deviation from thermocouple measurements not exceeding 100 K, and typically ≲30 K. Measurements in flames containing soot demonstrate good capacity of NTLAF to exclude interferences that hamper most two-dimensional thermometry techniques.en
dc.description.statementofresponsibilityPaul R. Medwell, Qing N. Chan, Peter A. M. Kalt, Zeyad T. Alwahabi, Bassam B. Dally, and Graham J. Nathanen
dc.publisherOptical Society of Americaen
dc.rights© 2009 Optical Society of Americaen
dc.titleDevelopment of temperature imaging using two-line atomic fluorescenceen
dc.typeJournal articleen
pubs.library.collectionMechanical Engineering publicationsen
dc.identifier.orcidMedwell, P. [0000-0002-2216-3033]en
dc.identifier.orcidAlwahabi, Z. [0000-0003-4831-7798]en
dc.identifier.orcidNathan, G. [0000-0002-6922-848X]en
Appears in Collections:Mechanical Engineering publications
Environment Institute Leaders publications
Environment Institute publications

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