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Atmospheric Pressure Acetylene Detection by UV Photo-Fragmentation and Induced C-2 Emission

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Author

Summary, in English

Detection of C2H2 via UV photo-fragmentation, followed by monitoring the C(2)d(3)Pi(g)-a(3)Pi(u) fluorescence, is explored at atmospheric pressure and at temperatures of 295 K, 600 K, and 800 K, for excitation wavelengths 210 to 240 am using a broadband laser source (similar to 3 cm(-1) fwhm). At the lower temperature, C-2 emissions correlate closely with C2H2 (A) over tilde <- X absorption bands, and the excitation spectra suggest a higher-transition probability for the v(4)'' = 2 and 3 states than for the v(4)'' = 0 and 1 states. As temperature increases, the excitation spectra exhibit a higher nonresonant background.

Department/s

Publishing year

2013

Language

English

Pages

66-72

Publication/Series

Applied Spectroscopy

Volume

67

Issue

1

Document type

Journal article

Publisher

Society for Applied Spectroscopy

Topic

  • Atom and Molecular Physics and Optics

Keywords

  • Ultraviolet Photo-fragmentation
  • Acetylene detection
  • C-2 Swan band
  • Fluorescence

Status

Published

ISBN/ISSN/Other

  • ISSN: 1943-3530