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Σ-X2Π(0,0) band system. High resolution polarization spectra were also recorded in the same flame using a conventional, frequency scanned, narrow linewidth dye laser. Absorption effects were found to produce significant systematic errors in the temperatures derived from the unsaturated spectra produced by both multiplex and narrow linewidth scanning techniques. After correction for absorption effects, temperatures were derived from the single-shot multiplex spectra with a precision of 4% which agreed well with values obtained from scanned spectra and from the calculated adiabatic temperatures.
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Received: 31 July 1996/Revised: 17 March 1997
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New, M., Ewart, P., Dreizler, A. et al. Multiplex polarization spectroscopy of OH for flame thermometry . Appl Phys B 65, 633–637 (1997). https://doi.org/10.1007/s003400050325
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DOI: https://doi.org/10.1007/s003400050325