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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 31 — Nov. 1, 2005
  • pp: 6526–6536

Time-resolved CO2 thermometry for pressures as great as 5 MPa by use of pure rotational coherent anti-Stokes Raman scattering

Martin Schenk, Thomas Seeger, and Alfred Leipertz  »View Author Affiliations


Applied Optics, Vol. 44, Issue 31, pp. 6526-6536 (2005)
http://dx.doi.org/10.1364/AO.44.006526


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Abstract

Pure rotational coherent anti-Stokes Raman scattering measurements of pure CO2 have been performed in a temperature range from 300 to 773 K and for pressure from 0.1 to 5 MPa for the purpose of time-resolved CO2 thermometry. Particular emphasis was put on the comparison of several linewidth approximations to model the experimental spectra. Generally good agreement of the temperature mean values with the thermocouple reference has been found for all models over almost the whole pressure and temperature range investigated. The standard deviations, which increased with temperature, were comparable with or better than the results gained for single-shot measurements of pure N2 or O2–N2 mixtures. Yet for high particle densities close to the critical point of CO2 the limitation of the models became obvious, owing to the strongly increased influence of motional narrowing effects. The characteristics of these effects have been demonstrated by measurements even closer to the critical conditions.

© 2005 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.6780) Instrumentation, measurement, and metrology : Temperature
(300.6230) Spectroscopy : Spectroscopy, coherent anti-Stokes Raman scattering
(300.6420) Spectroscopy : Spectroscopy, nonlinear

History
Original Manuscript: June 15, 2004
Revised Manuscript: April 6, 2005
Manuscript Accepted: July 14, 2005
Published: November 1, 2005

Citation
Martin Schenk, Thomas Seeger, and Alfred Leipertz, "Time-resolved CO2 thermometry for pressures as great as 5 MPa by use of pure rotational coherent anti-Stokes Raman scattering," Appl. Opt. 44, 6526-6536 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-31-6526

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