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

^*Corresponding author for this work

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

14 Scopus citations

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 (US)
Pages (from-to)	710-714
Number of pages	5
Journal	Applied spectroscopy
Volume	47
Issue number	6
DOIs	https://doi.org/10.1366/0003702934067009
State	Published - 1993
Externally published	Yes

Keywords

CARS
Concentration measurement
Flame spectroscopy
Raman spectroscopy
Spectroscopic techniques

ASJC Scopus subject areas

Instrumentation
Spectroscopy

Access to Document

10.1366/0003702934067009

Cite this

@article{885db2bf89bd45129043d7bd56db1287,

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

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.",

keywords = "CARS, Concentration measurement, Flame spectroscopy, Raman spectroscopy, Spectroscopic techniques",

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.}",

year = "1993",

doi = "10.1366/0003702934067009",

language = "English (US)",

volume = "47",

pages = "710--714",

journal = "Applied spectroscopy",

issn = "0003-7028",

publisher = "SAGE Publications",

number = "6",

}

TY - JOUR

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.

KW - CARS

KW - Concentration measurement

KW - Flame spectroscopy

KW - Raman spectroscopy

KW - Spectroscopic techniques

UR - http://www.scopus.com/inward/record.url?scp=0000165742&partnerID=8YFLogxK

U2 - 10.1366/0003702934067009

DO - 10.1366/0003702934067009

M3 - Article

AN - SCOPUS:0000165742

SN - 0003-7028

VL - 47

SP - 710

EP - 714

JO - Applied spectroscopy

JF - Applied spectroscopy

IS - 6

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this