Measuring the concentration of minor species from the modulation dip of the nonresonant background of broad-band CARS spectra

J. W. Hahn; S. N. Park; E. S. Lee; C. Rhee; K. T. Kang; S. H. Chung; C. Y. Choi; Y. D. Huh

doi:10.1366/0003702934067009

Measuring the concentration of minor species from the modulation dip of the nonresonant background of broad-band CARS spectra

J. W. Hahn, S. N. Park, E. S. Lee, C. Rhee, K. T. Kang, S. H. Chung, C. Y. Choi, Y. D. Huh

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

A new technique for measuring the concentration of species from the modulation dip of the nonresonant background of broad-band CARS spectra has been proposed. To reduce the mode noise superimposed on the CARS spectra, we used a modeless laser generating amplified spontaneous emission as the Stokes beam of the broad-band CARS. The modulation dip induced by a minor species, CO in Ar, was numerically calculated and fitted as a function of CO concentration and temperature. We applied this technique in measuring CO concentration in a static cell and also the profile of CO concentration in a CH₄/air premixed flame of a counterflow burner.

Original language	English
Pages (from-to)	710-714
Number of pages	5
Journal	Applied Spectroscopy
Volume	47
Issue number	6
DOIs	https://doi.org/10.1366/0003702934067009
Publication status	Published - 1993

All Science Journal Classification (ASJC) codes

Instrumentation
Spectroscopy

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abstract = "A new technique for measuring the concentration of species from the modulation dip of the nonresonant background of broad-band CARS spectra has been proposed. To reduce the mode noise superimposed on the CARS spectra, we used a modeless laser generating amplified spontaneous emission as the Stokes beam of the broad-band CARS. The modulation dip induced by a minor species, CO in Ar, was numerically calculated and fitted as a function of CO concentration and temperature. We applied this technique in measuring CO concentration in a static cell and also the profile of CO concentration in a CH4/air premixed flame of a counterflow burner.",

author = "Hahn, {J. W.} and Park, {S. N.} and Lee, {E. S.} and C. Rhee and Kang, {K. T.} and Chung, {S. H.} and Choi, {C. Y.} and Huh, {Y. D.}",

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T1 - Measuring the concentration of minor species from the modulation dip of the nonresonant background of broad-band CARS spectra

AU - Hahn, J. W.

AU - Park, S. N.

AU - Lee, E. S.

AU - Rhee, C.

AU - Kang, K. T.

AU - Chung, S. H.

AU - Choi, C. Y.

AU - Huh, Y. D.

PY - 1993

Y1 - 1993

N2 - A new technique for measuring the concentration of species from the modulation dip of the nonresonant background of broad-band CARS spectra has been proposed. To reduce the mode noise superimposed on the CARS spectra, we used a modeless laser generating amplified spontaneous emission as the Stokes beam of the broad-band CARS. The modulation dip induced by a minor species, CO in Ar, was numerically calculated and fitted as a function of CO concentration and temperature. We applied this technique in measuring CO concentration in a static cell and also the profile of CO concentration in a CH4/air premixed flame of a counterflow burner.

AB - A new technique for measuring the concentration of species from the modulation dip of the nonresonant background of broad-band CARS spectra has been proposed. To reduce the mode noise superimposed on the CARS spectra, we used a modeless laser generating amplified spontaneous emission as the Stokes beam of the broad-band CARS. The modulation dip induced by a minor species, CO in Ar, was numerically calculated and fitted as a function of CO concentration and temperature. We applied this technique in measuring CO concentration in a static cell and also the profile of CO concentration in a CH4/air premixed flame of a counterflow burner.

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Measuring the concentration of minor species from the modulation dip of the nonresonant background of broad-band CARS spectra

Abstract

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