Optical emission spectroscopy study of premixed C2H 4/O2 and C2H4/C2H 2/O2 flames for diamond growth with and without CO 2 laser excitation

X. N. He, T. Gebre, X. K. Shen, Z. Q. Xie, Y. S. Zhou, Yongfeng Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Optical emission spectroscopy (OES) measurements were carried out to study premixed C2H4/O2 and C2H 4/C2H2/O2 combustion flame for diamond deposition with and without a CO2 laser excitation. Strong emissions from radicals C2 and CH were observed in the visible range in all the OES spectra acquired. By adding a continuous-wave CO2 laser to irradiate the flame at a wavelength of 10.591 μm, the common CO 2 laser wavelength, it was discovered that the emission intensities of the C2 and CH radicals were increased due to the laser beam induced excitation. OES measurements of the C2 and CH radicals were performed using different gas combinations and laser powers. The rotational temperatures in the flame were determined by analyzing the spectra of the R-branch of the A2Δ→X2Π (0, 0) electronic transition near 430 nm (CH band head). Information obtained from the OES spectra, including the emission intensities of the C2 and CH radicals, the intensity ratios, and the rotational temperatures, was integrated into the study of diamond deposition on tungsten carbide substrates for mechanism analysis of the laser induced vibrational excitation and laser-assisted diamond deposition.

Original languageEnglish (US)
Title of host publicationLaser-based Micro- and Nanopackaging and Assembly IV
DOIs
StatePublished - May 7 2010
EventLaser-based Micro- and Nanopackaging and Assembly IV - San Francisco, CA, United States
Duration: Jan 26 2010Jan 28 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7585
ISSN (Print)0277-786X

Conference

ConferenceLaser-based Micro- and Nanopackaging and Assembly IV
CountryUnited States
CitySan Francisco, CA
Period1/26/101/28/10

Fingerprint

Optical emission spectroscopy
Diamond
Laser excitation
optical emission spectroscopy
Carbon Monoxide
Flame
Strombus or kite or diamond
Spectroscopy
flames
Diamonds
Excitation
diamonds
methylidyne
Laser
Lasers
excitation
lasers
CO2 Laser
Wavelength
Continuous wave lasers

Keywords

  • Diamond deposition
  • Optical emission spectroscopy
  • Rotational temperature
  • Vibrational excitation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

He, X. N., Gebre, T., Shen, X. K., Xie, Z. Q., Zhou, Y. S., & Lu, Y. (2010). Optical emission spectroscopy study of premixed C2H 4/O2 and C2H4/C2H 2/O2 flames for diamond growth with and without CO 2 laser excitation. In Laser-based Micro- and Nanopackaging and Assembly IV [75850A] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7585). https://doi.org/10.1117/12.843933

Optical emission spectroscopy study of premixed C2H 4/O2 and C2H4/C2H 2/O2 flames for diamond growth with and without CO 2 laser excitation. / He, X. N.; Gebre, T.; Shen, X. K.; Xie, Z. Q.; Zhou, Y. S.; Lu, Yongfeng.

Laser-based Micro- and Nanopackaging and Assembly IV. 2010. 75850A (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7585).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

He, XN, Gebre, T, Shen, XK, Xie, ZQ, Zhou, YS & Lu, Y 2010, Optical emission spectroscopy study of premixed C2H 4/O2 and C2H4/C2H 2/O2 flames for diamond growth with and without CO 2 laser excitation. in Laser-based Micro- and Nanopackaging and Assembly IV., 75850A, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7585, Laser-based Micro- and Nanopackaging and Assembly IV, San Francisco, CA, United States, 1/26/10. https://doi.org/10.1117/12.843933
He XN, Gebre T, Shen XK, Xie ZQ, Zhou YS, Lu Y. Optical emission spectroscopy study of premixed C2H 4/O2 and C2H4/C2H 2/O2 flames for diamond growth with and without CO 2 laser excitation. In Laser-based Micro- and Nanopackaging and Assembly IV. 2010. 75850A. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.843933
He, X. N. ; Gebre, T. ; Shen, X. K. ; Xie, Z. Q. ; Zhou, Y. S. ; Lu, Yongfeng. / Optical emission spectroscopy study of premixed C2H 4/O2 and C2H4/C2H 2/O2 flames for diamond growth with and without CO 2 laser excitation. Laser-based Micro- and Nanopackaging and Assembly IV. 2010. (Proceedings of SPIE - The International Society for Optical Engineering).
@inproceedings{214f1d2d14794d56b69a30fbb4e346ba,
title = "Optical emission spectroscopy study of premixed C2H 4/O2 and C2H4/C2H 2/O2 flames for diamond growth with and without CO 2 laser excitation",
abstract = "Optical emission spectroscopy (OES) measurements were carried out to study premixed C2H4/O2 and C2H 4/C2H2/O2 combustion flame for diamond deposition with and without a CO2 laser excitation. Strong emissions from radicals C2 and CH were observed in the visible range in all the OES spectra acquired. By adding a continuous-wave CO2 laser to irradiate the flame at a wavelength of 10.591 μm, the common CO 2 laser wavelength, it was discovered that the emission intensities of the C2 and CH radicals were increased due to the laser beam induced excitation. OES measurements of the C2 and CH radicals were performed using different gas combinations and laser powers. The rotational temperatures in the flame were determined by analyzing the spectra of the R-branch of the A2Δ→X2Π (0, 0) electronic transition near 430 nm (CH band head). Information obtained from the OES spectra, including the emission intensities of the C2 and CH radicals, the intensity ratios, and the rotational temperatures, was integrated into the study of diamond deposition on tungsten carbide substrates for mechanism analysis of the laser induced vibrational excitation and laser-assisted diamond deposition.",
keywords = "Diamond deposition, Optical emission spectroscopy, Rotational temperature, Vibrational excitation",
author = "He, {X. N.} and T. Gebre and Shen, {X. K.} and Xie, {Z. Q.} and Zhou, {Y. S.} and Yongfeng Lu",
year = "2010",
month = "5",
day = "7",
doi = "10.1117/12.843933",
language = "English (US)",
isbn = "9780819479815",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Laser-based Micro- and Nanopackaging and Assembly IV",

}

TY - GEN

T1 - Optical emission spectroscopy study of premixed C2H 4/O2 and C2H4/C2H 2/O2 flames for diamond growth with and without CO 2 laser excitation

AU - He, X. N.

AU - Gebre, T.

AU - Shen, X. K.

AU - Xie, Z. Q.

AU - Zhou, Y. S.

AU - Lu, Yongfeng

PY - 2010/5/7

Y1 - 2010/5/7

N2 - Optical emission spectroscopy (OES) measurements were carried out to study premixed C2H4/O2 and C2H 4/C2H2/O2 combustion flame for diamond deposition with and without a CO2 laser excitation. Strong emissions from radicals C2 and CH were observed in the visible range in all the OES spectra acquired. By adding a continuous-wave CO2 laser to irradiate the flame at a wavelength of 10.591 μm, the common CO 2 laser wavelength, it was discovered that the emission intensities of the C2 and CH radicals were increased due to the laser beam induced excitation. OES measurements of the C2 and CH radicals were performed using different gas combinations and laser powers. The rotational temperatures in the flame were determined by analyzing the spectra of the R-branch of the A2Δ→X2Π (0, 0) electronic transition near 430 nm (CH band head). Information obtained from the OES spectra, including the emission intensities of the C2 and CH radicals, the intensity ratios, and the rotational temperatures, was integrated into the study of diamond deposition on tungsten carbide substrates for mechanism analysis of the laser induced vibrational excitation and laser-assisted diamond deposition.

AB - Optical emission spectroscopy (OES) measurements were carried out to study premixed C2H4/O2 and C2H 4/C2H2/O2 combustion flame for diamond deposition with and without a CO2 laser excitation. Strong emissions from radicals C2 and CH were observed in the visible range in all the OES spectra acquired. By adding a continuous-wave CO2 laser to irradiate the flame at a wavelength of 10.591 μm, the common CO 2 laser wavelength, it was discovered that the emission intensities of the C2 and CH radicals were increased due to the laser beam induced excitation. OES measurements of the C2 and CH radicals were performed using different gas combinations and laser powers. The rotational temperatures in the flame were determined by analyzing the spectra of the R-branch of the A2Δ→X2Π (0, 0) electronic transition near 430 nm (CH band head). Information obtained from the OES spectra, including the emission intensities of the C2 and CH radicals, the intensity ratios, and the rotational temperatures, was integrated into the study of diamond deposition on tungsten carbide substrates for mechanism analysis of the laser induced vibrational excitation and laser-assisted diamond deposition.

KW - Diamond deposition

KW - Optical emission spectroscopy

KW - Rotational temperature

KW - Vibrational excitation

UR - http://www.scopus.com/inward/record.url?scp=77951753750&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77951753750&partnerID=8YFLogxK

U2 - 10.1117/12.843933

DO - 10.1117/12.843933

M3 - Conference contribution

SN - 9780819479815

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Laser-based Micro- and Nanopackaging and Assembly IV

ER -