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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 15 — May. 20, 2002
  • pp: 2962–2972

Resonant Raman-Scattering Measurements of Trichloroethene in a Thermal Boundary Layer

Yanda Zhang, Peter B. Kelly, and Ian M. Kennedy  »View Author Affiliations


Applied Optics, Vol. 41, Issue 15, pp. 2962-2972 (2002)
http://dx.doi.org/10.1364/AO.41.002962


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Abstract

Concentration profiles of trichloroethene were measured in a boundary-layer flow over a heated ceramic surface. Raman scattering was excited with the fifth harmonic of a Nd:YAG laser at 213 nm. This wavelength took advantage of a resonance in the trichloroethene molecule to significantly enhance the C2HCl3 scattering cross section. The resonant Raman system was calibrated in a heated flow. The optical system was optimized so that measurements could be obtained close to the solid surface, normally a significant challenge for a spontaneous Raman-scattering setup. Measured concentrations indicated the lack of catalytic activity on a bare alumina surface. However, the results showed that a surface that was coated with Cr2O3-based zeolite was catalytically active.

© 2002 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6450) Spectroscopy : Spectroscopy, Raman

Citation
Yanda Zhang, Peter B. Kelly, and Ian M. Kennedy, "Resonant Raman-Scattering Measurements of Trichloroethene in a Thermal Boundary Layer," Appl. Opt. 41, 2962-2972 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-15-2962


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