Abstract

Broadband rotational coherent and anti-Stokes Raman scattering (CARS) and vibrational CARS measurements have been performed to determine the N2 temperature in a flame (1800–2000 K). Comparisons between these two CARS approaches indicate that, despite loss of signal strength with increasing temperature, rotational CARS is a potentially viable technique for flame-temperature measurements.

© 1984 Optical Society of America

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References

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1982 (1)

1981 (1)

1980 (3)

1979 (2)

1976 (1)

W. B. Roh, P. W. Schreiber, J. P.-E. Taran, Appl. Phys. Lett. 29, 174 (1976).
[CrossRef]

1973 (2)

Chang, R. K.

Cole, J. B.

Eckbreth, A. C.

J. A. Shirley, R. J. Hall, A. C. Eckbreth, Opt. Lett. 5, 380 (1980).
[CrossRef] [PubMed]

A. C. Eckbreth, P. W. Schreiber, in Chemical Applications of Nonlinear Raman Spectroscopy, A. B. Harvey, ed. (Academic, New York, 1981), p. 27.

R. J. Hall, A. C. Eckbreth, in Laser Applications, R. F. Erf, ed. (Academic, New York, to be published).

Farrow, R. L.

Fenner, W. R.

Fleming, J. W.

Goss, L. P.

Hall, R. J.

J. A. Shirley, R. J. Hall, A. C. Eckbreth, Opt. Lett. 5, 380 (1980).
[CrossRef] [PubMed]

R. J. Hall, A. C. Eckbreth, in Laser Applications, R. F. Erf, ed. (Academic, New York, to be published).

Harvey, A. B.

Hyatt, H. A.

Kellam, J. M.

Mattern, P. L.

R. L. Farrow, P. L. Mattern, L. A. Rahn, Appl. Opt. 21, 3119 (1982).
[CrossRef] [PubMed]

L. A. Rahn, L. J. Zych, P. L. Mattern, Opt. Commun. 30, 249 (1979).
[CrossRef]

Murphy, D. V.

Porto, S. P. S.

Prior, Y.

Rahn, L. A.

R. L. Farrow, P. L. Mattern, L. A. Rahn, Appl. Opt. 21, 3119 (1982).
[CrossRef] [PubMed]

L. A. Rahn, L. J. Zych, P. L. Mattern, Opt. Commun. 30, 249 (1979).
[CrossRef]

Regnier, P. R.

P. R. Regnier, J. P.-E. Taran, Appl. Phys. Lett. 23, 240 (1973).
[CrossRef]

Roh, W. B.

W. B. Roh, P. W. Schreiber, J. P.-E. Taran, Appl. Phys. Lett. 29, 174 (1976).
[CrossRef]

Schreiber, P. W.

W. B. Roh, P. W. Schreiber, J. P.-E. Taran, Appl. Phys. Lett. 29, 174 (1976).
[CrossRef]

A. C. Eckbreth, P. W. Schreiber, in Chemical Applications of Nonlinear Raman Spectroscopy, A. B. Harvey, ed. (Academic, New York, 1981), p. 27.

Shirley, J. A.

Stenhouse, I. A.

Swords, M. D.

Taran, J. P.-E.

W. B. Roh, P. W. Schreiber, J. P.-E. Taran, Appl. Phys. Lett. 29, 174 (1976).
[CrossRef]

P. R. Regnier, J. P.-E. Taran, Appl. Phys. Lett. 23, 240 (1973).
[CrossRef]

Williams, D. R.

Zych, L. J.

L. A. Rahn, L. J. Zych, P. L. Mattern, Opt. Commun. 30, 249 (1979).
[CrossRef]

Appl. Opt. (3)

Appl. Phys. Lett. (2)

P. R. Regnier, J. P.-E. Taran, Appl. Phys. Lett. 23, 240 (1973).
[CrossRef]

W. B. Roh, P. W. Schreiber, J. P.-E. Taran, Appl. Phys. Lett. 29, 174 (1976).
[CrossRef]

J. Opt. Soc. Am. (1)

Opt. Commun. (1)

L. A. Rahn, L. J. Zych, P. L. Mattern, Opt. Commun. 30, 249 (1979).
[CrossRef]

Opt. Lett. (3)

Other (2)

R. J. Hall, A. C. Eckbreth, in Laser Applications, R. F. Erf, ed. (Academic, New York, to be published).

A. C. Eckbreth, P. W. Schreiber, in Chemical Applications of Nonlinear Raman Spectroscopy, A. B. Harvey, ed. (Academic, New York, 1981), p. 27.

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Figures (5)

Fig. 1
Fig. 1

Pure rotational CARS spectrum of N2, including (a) the nonresonant CARS of the Ar reference, (b) the unnormalized experimental CARS of N2 in a flame, (c) the corresponding normalized CARS, and (d) the calculated CARS. Experimental spectra are the average of 16 laser pulses. The best least-squares-fit CARS temperature was 2060 K.

Fig. 2
Fig. 2

Vibrational CARS spectra of the N2 Q-branch in which the solid line is the experimental spectrum and the dashed line is the theoretical spectrum. The best least-squares-fit CARS temperature was 1864 K.

Fig. 3
Fig. 3

Pure rotational CARS generated in a single 10-nsec laser pulse including (a) the nonresonant CARS of the Ar reference and (b) the normalized CARS of N2 in a flame.

Fig. 4
Fig. 4

Theoretical rotational CARS intensity distribution of N2 for temperatures from 1600 to 2000 K in increments of 100 K.

Fig. 5
Fig. 5

Theoretical vibrational CARS spectra of N2 for temperatures from 1600 to 2000 K in increments of 100 K.

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