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.
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References
1.
Regnier
R. E.
Taran
J. P. E.
, Appl. Phys. Lett. 23 , 240 (1973 ).
2.
Stenhouse
A.
Williams
D. R.
Cole
J. B.
Swords
M. D.
, Appl. Opt. 22 , 3819 (1979 ).
3.
Switzer
G. L.
Roquemore
W. M.
Bradley
R. B.
Schreiber
P. W.
Rho
W. B.
, Appl. Opt. 18 , 2343 (1979 ).
4.
Farrow
R. L.
Mattern
P. L.
Rahn
L. A.
, Appl. Opt. 21 , 3119 (1982 ).
5.
Eckbreth
A. C.
Dobbs
G. M.
Stufflebeam
J. H.
Tellex
P. A.
, Appl. Opt. 23 , 1328 (1984 ).
6.
Hall
R. J.
Eckbreth
A. C.
, “CARS Application to Combustion Diagnostics,” in Laser Applications ,
Ready
J. F.
Erf
R. K.
, Eds. (Academic Press , Orlando, Florida , 1984 ), Vol. 5 , p. 213 .
7.
Yueh
F. Y.
Beiting
E. J.
, Appl. Opt. 27 , 3233 (1988 ).
8.
Eckbreth
A. C.
, Laser Diagnostics for Combustion Temperature and Species (Abacus Press , Tunbridge Wells, U.K. , 1988 ), Chap. 6, p. 220 .
9.
Attal-Tretout
B.
Bouchardy
P.
Magre
P.
Pealat
M.
Taran
J. P.
, Appl. Phys. B 51 , 17 (1991 ).
10.
Hancock
D.
Hedman
P. O.
Kramer
S. K.
, Combustion & Flame 87 , 77 (1991 ).
11.
Greenhalgh
D. A.
Porter
F. M.
England
W. A.
, Combustion & Flame 49 , 171 (1983 ).
12.
England
W. A.
Ali
A.
, Appl. Spectrosc. 42 , 1412 (1988 ).
13.
Alden
M.
Wendt
W.
, Appl. Spectrosc. 42 , 1421 (1988 ).
14.
Woyde
M.
Stricker
W.
, Appl. Phys. B 50 , 519 (1990 ).
15.
Koszykowski
M. L.
Farrow
R. L.
Palmer
R. E.
, Opt. Lett. 10 , 478 (1985 ).
16.
Rahn
L. A.
Palmer
R. E.
, J. Opt. Soc. Am. B 3 , 1164 (1986 ).
17.
Lucht
R. P.
Farrow
R. L.
, J. Opt. Soc. Am. B 5 , 1243 (1988 ).
18.
Greenhalgh
D. A.
, “Quantitative CARS Spectroscopy,” in Advances in Non-Linear Spectroscopy ,
Clark
R. J. H.
Hester
R. E.
, Eds. (John Wiley & Sons , Chichester, U.K. , 1988 ), Chap. 6, p. 193 .
19.
Eckbreth
A. C.
, Appl. Phys. Lett. 32 , 421 (1978 ).
20.
Schirley
J. A.
Hall
R. J.
Eckbreth
A. C.
, Opt. Lett. 5 , 380 (1980 ).
21.
Tolles
W. M.
Nibler
J. W.
McDonald
J. R.
Harvey
A. B.
, Appl. Spectrosc. 31 , 253 (1977 ).
22.
Aron
K.
Harris
L. E.
Fendell
J.
, Appl. Opt. 22 , 3604 (1983 ).
23.
Farrow
R. L.
Lucht
R. P.
Clark
G. L.
Palmer
R. E.
, Appl. Opt. 24 , 2241 (1985 ).
24.
Rahn
L. A.
Zych
L. J.
Marttern
P. L.
, Opt. Commun. 30 , 249 (1979 ).
25.
Oudar
J. L.
Smith
R. W.
Shen
Y. R.
, Appl. Phys. Lett. 34 , 758 (1979 ).
26.
Eckbreth
A. C.
Hall
R. J.
, Combustion Sci. Tech. 25 , 175 (1981 ).
27.
Greenhalgh
D. A.
Whittley
S. T.
, Appl. Opt. 24 , 907 (1985 ).
28.
Ewart
P.
, Opt. Commun. 55 , 124 (1985 ).
29.
Hahn
J. W.
Park
S. N.
Lee
E. S.
Rhee
C.
, Korean J. Appl. Phys. 4 , 314 (1991 ).
30.
Park
S. N.
Hahn
J. W.
Rhee
C.
, Korean J. Appl. Phys. 5 , 9 (1992 ).
31.
Kataoka
H.
Maeda
S.
Hirose
C.
, Appl. Spectro. 36 , 565 (1982 ).
32.
Rahn
L. A.
Farrow
R. L.
Lucht
R. P.
, Opt. Lett. 9 , 223 (1984 ).
33.
Duarte
F. J.
, “Technology of Pulsed Dye Lasers,” in Dye Laser Principles ,
Duarte
F. J.
Hillman
L. W.
, Eds. (Academic Press , Boston , 1990 ), Chap. 6, p. 239 .
34.
Gaydon
A. G.
Wolfhard
H. G.
, Flames: Their Structure, Radiation and Temperature (Chapman and Hall , London , 1979 ), 4th ed. , pp. 162 –165 .
35.
Chung
S. H.
Kim
J. S.
Law
C. K.
, in Proceedings of the Twenty-first Symposium (International) on Combustion (The Combustion Institute , Pittsburgh , 1986 ), p. 1845 .
36.
Farrow
R. L.
Rahn
L. A.
, J. Opt. Soc. Am. B 2 , 903 (1985 ).
37.
Lee
S. D.
, “Numerical Study on the Interaction Lean Methane Flames,” M.S. Thesis , Seoul National University , Seoul, Korea , (1993 ).