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dc.contributor.authorAlquaity, Awad
dc.contributor.authorKC, Utsav
dc.contributor.authorPopov, Alber
dc.contributor.authorFarooq, Aamir
dc.date.accessioned2017-11-13T07:44:12Z
dc.date.available2017-11-13T07:44:12Z
dc.date.issued2017-11-11
dc.identifier.citationAlquaity ABS, KC U, Popov A, Farooq A (2017) Detection of shock-heated hydrogen peroxide (H2O2) by off-axis cavity-enhanced absorption spectroscopy (OA-CEAS). Applied Physics B 123. Available: http://dx.doi.org/10.1007/s00340-017-6851-3.
dc.identifier.issn0946-2171
dc.identifier.issn1432-0649
dc.identifier.doi10.1007/s00340-017-6851-3
dc.identifier.urihttp://hdl.handle.net/10754/626147
dc.description.abstractCavity-enhanced absorption spectroscopy (CEAS) is a promising technique for studying chemical reactions due to its desirable characteristics of high sensitivity and fast time-response by virtue of the increased path length and relatively short photon residence time inside the cavity. Off-axis CEAS (OA-CEAS) is particularly suited for the shock tube applications as it is insensitive to slight misalignments, and cavity noise is suppressed due to non-overlapping multiple reflections of the probe beam inside the cavity. Here, OA-CEAS is demonstrated in the mid-IR region at 1310.068 cm−1 to monitor trace concentrations of hydrogen peroxide (H2O2). This particular probe frequency was chosen to minimize interference from other species prevalent in combustion systems and in the atmosphere. The noise-equivalent detection limit is found to be 3.25 × 10−5 cm−1, and the gain factor of the cavity is 131. This corresponds to a detection limit of 74 ppm of H2O2 at typical high-temperature combustion conditions (1200 K and 1 atm) and 12 ppm of H2O2 at ambient conditions (296 K and 1 atm). To our knowledge, this is the first successful application of the OA-CEAS technique to detect H2O2 which is vital species in combustion and atmospheric science.
dc.description.sponsorshipResearch reported in this publication was funded by King Abdullah University of Science and Technology (KAUST) via the Competitive Center Funding (CCF) program.
dc.publisherSpringer Nature
dc.relation.urlhttp://link.springer.com/article/10.1007/s00340-017-6851-3
dc.rightsThe final publication is available at Springer via http://dx.doi.org/10.1007/s00340-017-6851-3
dc.titleDetection of shock-heated hydrogen peroxide (H2O2) by off-axis cavity-enhanced absorption spectroscopy (OA-CEAS)
dc.typeArticle
dc.contributor.departmentChemical Kinetics & Laser Sensors Laboratory
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalApplied Physics B
dc.eprint.versionPost-print
dc.contributor.institutionAeronautical Engineering Technology Program, Higher Colleges of Technology, Al Ain, United Arab Emirates
kaust.personAlquaity, Awad
kaust.personKC, Utsav
kaust.personPopov, Alber
kaust.personFarooq, Aamir
refterms.dateFOA2018-11-11T00:00:00Z
dc.date.published-online2017-11-11
dc.date.published-print2017-12


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