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Influence of laser vibrational excitations of ethylene molecules in laser-assisted combustion diamond synthesis

hal.structure.identifierDepartment of Electrical and Computer Engineering
dc.contributor.authorFAN, Lisha
hal.structure.identifierDepartment of Electrical and Computer Engineering
dc.contributor.authorZHOU, Yunshen
hal.structure.identifierDepartment of Electrical and Computer Engineering
dc.contributor.authorGAO, Yang
dc.contributor.authorLIU, L.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSILVAIN, Jean-François
hal.structure.identifierDepartment of Electrical and Computer Engineering
dc.contributor.authorLU, Yongfeng
dc.date.issued2015
dc.identifier.issn1946-4274
dc.description.abstractEnLaser-induced vibrational excitation of ethylene molecules was integrated to the CVD diamond deposition process for an in-depth understanding of the energy coupling path in chemical reactions and an alternative method to enhance the diamond deposition. On- and off-resonance excitations of ethylene molecules were achieved via tuning the incident laser wavelengths centered at 10.532 µm. With the same amount of laser power absorbed, the chemical reaction is highly accelerated with on-resonance vibrational excitation whereas energy coupling with off-resonance excitations was less efficient in influencing the combustion process. The diamond deposition rate was enhanced by a factor of 5.7 accompanied with an improvement of diamond quality index with the on-resonance excitation at 10.532 μm. The measured flame temperature demonstrated that the resonant vibrational excitation was an efficient route for coupling energy into the reactant molecules and steering the combustion process.
dc.language.isoen
dc.publisherCambridge University Press
dc.title.enInfluence of laser vibrational excitations of ethylene molecules in laser-assisted combustion diamond synthesis
dc.typeArticle de revue
dc.identifier.doi10.1557/opl.2015.6
dc.subject.halChimie/Matériaux
bordeaux.journalMRS Online Proceedings Library
bordeaux.volume1734
bordeaux.peerReviewedoui
hal.identifierhal-03136234
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03136234v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=MRS%20Online%20Proceedings%20Library&rft.date=2015&rft.volume=1734&rft.eissn=1946-4274&rft.issn=1946-4274&rft.au=FAN,%20Lisha&ZHOU,%20Yunshen&GAO,%20Yang&LIU,%20L.&SILVAIN,%20Jean-Fran%C3%A7ois&rft.genre=article


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