Abstract
The accuracy and precision of time-resolved one-dimensional temperature measurements using single-pulse one-dimensional N2 vibrational coherent anti-Stokes Raman scattering along a line have been investigated in air in the temperature range from 300 to 1500 K. For this, the experimental spectra were taken in a high-temperature oven at atmospheric pressure. A planar BOXCARS phase-matching geometry was employed to generate the signal along a 6.16-mm line directed perpendicular to the beam propagation. With the used imaging optics, in this direction a spatial resolution of 86 µm was achieved. Depending on the set temperature, the agreement between the thermocouple readings and the mean values of the evalutated coherent anti-Stokes Raman-scattering temperatures is better than 40 K. The applicability of this new technique for the time-resolved measurement of temperature gradients is demonstrated along a line that crosses the flame front in a premixed laminar CH4–air flame.
© 1997 Optical Society of America
Full Article | PDF ArticleMore Like This
Christopher J. Kliewer, Yi Gao, Thomas Seeger, Brian D. Patterson, Roger L. Farrow, and Thomas B. Settersten
Appl. Opt. 50(12) 1770-1778 (2011)
Christian Brackmann, Joakim Bood, Per-Erik Bengtsson, Thomas Seeger, Martin Schenk, and Alfred Leipertz
Appl. Opt. 41(3) 564-572 (2002)
Albert Thumann, Martin Schenk, Joachim Jonuscheit, Thomas Seeger, and Alfred Leipertz
Appl. Opt. 36(15) 3500-3505 (1997)