Laser-induced resonant vibrational excitations of precursor molecules in multi-energy processing for diamond synthesis

Z. Q. Xie; X. N. He; Y. Gao; Y. S. Zhou; J. B. Park; T. Guillemet; Y. F. Lu

doi:10.2351/1.5061999

Laser-induced resonant vibrational excitations of precursor molecules in multi-energy processing for diamond synthesis

Z. Q. Xie, X. N. He, Y. Gao, Y. S. Zhou, J. B. Park, T. Guillemet, Y. F. Lu

Electrical & Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A wavelength-tunable CO₂ laser (spectrum range from 9.2 to 10.9 μm) was applied in a multi-energy process for growing diamond crystals in open air. A pre-mixed C₂H₄/C₂H ₂/O₂ gas was used as precursors for the diamond growth. Laser energy was coupled into the reactions through resonantly exciting the CH₂-wagging mode of ethylene (C₂H₄) molecules by tuning the laser wavelength to 10.532 μm. Diamond growth rate and diamond quality were both promoted by the laser-induced resonant excitations. High-quality diamond crystals were grown on silicon substrates with a high growth rate of ∼139 μm/hr. Diamond crystals up to 5 mm in height and 1 mm in diameter were grown in open air in 36 hours. Sharp Raman peak at 1332 cm^-1 with a full width at half maximum value around 4.5 cm ^-1 and distinct X-ray diffraction spectra indicate the high quality of the diamond crystals.

Original language	English (US)
Title of host publication	29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings
Publisher	Laser Institute of America
Pages	1444-1449
Number of pages	6
ISBN (Print)	9780912035611
DOIs	https://doi.org/10.2351/1.5061999
State	Published - 2010

Publication series

Name	29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings
Volume	103

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation

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10.2351/1.5061999

Cite this

Xie, Z. Q., He, X. N., Gao, Y., Zhou, Y. S., Park, J. B., Guillemet, T., & Lu, Y. F. (2010). Laser-induced resonant vibrational excitations of precursor molecules in multi-energy processing for diamond synthesis. In 29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings (pp. 1444-1449). (29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings; Vol. 103). Laser Institute of America. https://doi.org/10.2351/1.5061999

Laser-induced resonant vibrational excitations of precursor molecules in multi-energy processing for diamond synthesis. / Xie, Z. Q.; He, X. N.; Gao, Y. et al.
29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings. Laser Institute of America, 2010. p. 1444-1449 (29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings; Vol. 103).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Xie, ZQ, He, XN, Gao, Y, Zhou, YS, Park, JB, Guillemet, T & Lu, YF 2010, Laser-induced resonant vibrational excitations of precursor molecules in multi-energy processing for diamond synthesis. in 29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings. 29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings, vol. 103, Laser Institute of America, pp. 1444-1449. https://doi.org/10.2351/1.5061999

Xie ZQ, He XN, Gao Y, Zhou YS, Park JB, Guillemet T et al. Laser-induced resonant vibrational excitations of precursor molecules in multi-energy processing for diamond synthesis. In 29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings. Laser Institute of America. 2010. p. 1444-1449. (29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings). doi: 10.2351/1.5061999

Xie, Z. Q. ; He, X. N. ; Gao, Y. et al. / Laser-induced resonant vibrational excitations of precursor molecules in multi-energy processing for diamond synthesis. 29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings. Laser Institute of America, 2010. pp. 1444-1449 (29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings).

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abstract = "A wavelength-tunable CO2 laser (spectrum range from 9.2 to 10.9 μm) was applied in a multi-energy process for growing diamond crystals in open air. A pre-mixed C2H4/C2H 2/O2 gas was used as precursors for the diamond growth. Laser energy was coupled into the reactions through resonantly exciting the CH2-wagging mode of ethylene (C2H4) molecules by tuning the laser wavelength to 10.532 μm. Diamond growth rate and diamond quality were both promoted by the laser-induced resonant excitations. High-quality diamond crystals were grown on silicon substrates with a high growth rate of ∼139 μm/hr. Diamond crystals up to 5 mm in height and 1 mm in diameter were grown in open air in 36 hours. Sharp Raman peak at 1332 cm-1 with a full width at half maximum value around 4.5 cm -1 and distinct X-ray diffraction spectra indicate the high quality of the diamond crystals.",

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AU - Guillemet, T.

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AB - A wavelength-tunable CO2 laser (spectrum range from 9.2 to 10.9 μm) was applied in a multi-energy process for growing diamond crystals in open air. A pre-mixed C2H4/C2H 2/O2 gas was used as precursors for the diamond growth. Laser energy was coupled into the reactions through resonantly exciting the CH2-wagging mode of ethylene (C2H4) molecules by tuning the laser wavelength to 10.532 μm. Diamond growth rate and diamond quality were both promoted by the laser-induced resonant excitations. High-quality diamond crystals were grown on silicon substrates with a high growth rate of ∼139 μm/hr. Diamond crystals up to 5 mm in height and 1 mm in diameter were grown in open air in 36 hours. Sharp Raman peak at 1332 cm-1 with a full width at half maximum value around 4.5 cm -1 and distinct X-ray diffraction spectra indicate the high quality of the diamond crystals.

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Laser-induced resonant vibrational excitations of precursor molecules in multi-energy processing for diamond synthesis

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