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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 24, Iss. 7 — Apr. 1, 1985
  • pp: 1012–1022

Precision of multiplex CARS temperature measurements

M. Pealat, P. Bouchardy, M. Lefebvre, and J.-P. Taran  »View Author Affiliations


Applied Optics, Vol. 24, Issue 7, pp. 1012-1022 (1985)
http://dx.doi.org/10.1364/AO.24.001012


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Abstract

The potential measurement accuracy of coherent anti-Stokes Raman scattering (CARS) in N2 was studied. A test was conducted using BOXCARS and nonresonant background suppression in a stabilized tube furnace from room temperature up to 1700 K. A computer program was developed for quick data processing. The influence of referencing on temperature measurement accuracy was analyzed. Absence of referencing produced errors up to 100 K on the mean temperature and on the standard deviation. Referencing with a time-averaged reference gave accurate values for the mean temperature. Referencing on a shot-to-shot basis improved the mean slightly and produced marginal gains in the standard deviation of individual measurements. The latter stays in the 10–50 K range in the temperature domain. Simulations show that part of the standard deviation (20%) is attributable to shot noise alone. The rest probably results from dye laser spectral noise and beam wandering.

© 1985 Optical Society of America

History
Original Manuscript: August 24, 1984
Published: April 1, 1985

Citation
M. Pealat, P. Bouchardy, M. Lefebvre, and J.-P. Taran, "Precision of multiplex CARS temperature measurements," Appl. Opt. 24, 1012-1022 (1985)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-24-7-1012

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