Resonant vibrational excitation of ethylene molecules in laser-assisted diamond deposition
| hal.structure.identifier | Department of Electrical Engineering | |
| dc.contributor.author | FAN, Li Sha | |
| hal.structure.identifier | Department of Electrical Engineering | |
| dc.contributor.author | ZHOU, Yunshen | |
| hal.structure.identifier | Department of Electrical Engineering | |
| dc.contributor.author | GAO, Yang | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | SILVAIN, Jean-François | |
| hal.structure.identifier | Department of Electrical Engineering | |
| dc.contributor.author | LIU, L. | |
| hal.structure.identifier | Department of Electrical Engineering | |
| dc.contributor.author | LU YONG, Feng | |
| dc.date.issued | 2014 | |
| dc.identifier.issn | 1612-2011 | |
| dc.description.abstractEn | The influence of resonant vibrational excitation of ethylene molecules in combustion chemical vapor deposition of diamond was investigated. Resonant vibrational excitation of the CH2-wagging mode (a type c fundamental band, υ7, at 949.3 cm−1) in ethylene molecules was achieved by using a wavelength-tunable CO2 laser with a matching wavelength at 10.532 µm. By comparing to laser irradiation at off-resonance wavelengths, an on-resonance vibrational excitation is more efficient in energy coupling, increasing flame temperatures, accelerating the combustion reactions, and promoting diamond deposition. An enhanced rate of 5.7 was achieved in terms of the diamond growth rate with an improved diamond quality index at a high flame temperature under a resonant excitation of the CH2-wagging mode. This study demonstrates that a resonant vibrational excitation is an effective route for coupling energy into the gas phase reactions and promoting the diamond synthesis process. | |
| dc.language.iso | en | |
| dc.publisher | IOP Publishing | |
| dc.subject.en | Laser-assisted deposition | |
| dc.subject.en | Diamond | |
| dc.subject.en | Ethylene | |
| dc.title.en | Resonant vibrational excitation of ethylene molecules in laser-assisted diamond deposition | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1088/1612-2011/11/7/076002 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Laser Physics Letters | |
| bordeaux.page | 076002 (9 p.) | |
| bordeaux.volume | 11 | |
| bordeaux.issue | 7 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01005351 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01005351v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Laser%20Physics%20Letters&rft.date=2014&rft.volume=11&rft.issue=7&rft.spage=076002%20(9%20p.)&rft.epage=076002%20(9%20p.)&rft.eissn=1612-2011&rft.issn=1612-2011&rft.au=FAN,%20Li%20Sha&ZHOU,%20Yunshen&GAO,%20Yang&SILVAIN,%20Jean-Fran%C3%A7ois&LIU,%20L.&rft.genre=article |
Fichier(s) constituant ce document
| Fichiers | Taille | Format | Vue |
|---|---|---|---|
|
Il n'y a pas de fichiers associés à ce document. |
|||