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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 11 — Apr. 10, 2008
  • pp: 1837–1845

Oxygen plasma flow properties deduced from laser-induced fluorescence and probe measurements

Stefan Löhle, Christoph Eichhorn, Andreas Steinbeck, Sebastian Lein, Georg Herdrich, Hans-Peter Röser, and Monika Auweter-Kurtz  »View Author Affiliations


Applied Optics, Vol. 47, Issue 11, pp. 1837-1845 (2008)
http://dx.doi.org/10.1364/AO.47.001837


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Abstract

Estimation of the local dissociation degree and the local mass-specific enthalpy of a pure oxygen plasma flow determined mainly from laser-induced fluorescence measurements are reported. Mea surements have been conducted for several generator parameters in an inductively heated plasma wind tunnel. Additional probe measurements of total pressure together with the deduced transla tional temperature are used to estimate the local mass-specific enthalpy. For a reference condition, full dissociation has been measured. The measured translational temperature of atomic oxygen for this condition is T = 3500 K . Subsequently, the local mass-specific enthalpy has been derived using these local density and temperature measurements. For the reference condition the estimated value of h = 27 MJ / kg is in good agreement with the probe measurements and results from diode laser absorption spectroscopy.

© 2008 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.2530) Spectroscopy : Fluorescence, laser-induced

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 20, 2007
Manuscript Accepted: February 22, 2008
Published: April 4, 2008

Citation
Stefan Löhle, Christoph Eichhorn, Andreas Steinbeck, Sebastian Lein, Georg Herdrich, Hans-Peter Röser, and Monika Auweter-Kurtz, "Oxygen plasma flow properties deduced from laser-induced fluorescence and probe measurements," Appl. Opt. 47, 1837-1845 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-11-1837


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References

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