Abstract

The beam from a rapid-tuning single-frequency laser was used to probe the R1(7) and R1(11) A 2Σ+X 2∏ (0, 0) line pair of OH at a 45° incident angle in a combustion-driven, supersonic free jet. Absorption line shapes were recorded in spatially resolved, single-point fluorescence. The Doppler shift, intensity ratio, and collisional broadening of the measured line pair were used to determine velocity, temperature, and pressure. The repetition rate of the measurement was 3 kHz.

© 1990 Optical Society of America

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References

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  1. S. Cheng, M. Zimmermann, R. B. Miles, Appl. Phys. Lett. 43, 143 (1983).
    [CrossRef]
  2. B. Hiller, R. K. Hanson, Appl. Opt. 27, 33 (1988).
    [CrossRef] [PubMed]
  3. P. H. Paul, M. P. Lee, R. K. Hanson, Opt. Lett. 14, 417 (1989).
    [CrossRef] [PubMed]
  4. A. Y. Chang, E. C. Rea, R. K. Hanson, Appl. Opt. 26, 885 (1987).
    [CrossRef] [PubMed]
  5. E. C. Rea, R. K. Hanson, Appl. Opt. 27, 4454 (1988).
    [CrossRef] [PubMed]
  6. E. C. Rea, R. K. Hanson, Appl. Opt. 22, 518 (1983).
    [CrossRef] [PubMed]
  7. E. S. Love, C. E. Gribsby, L. P. Lee, M. J. Woodling, NASA Tech. Rep. R-6 (National Aeronautics and Space Administration, Washington, D.C., 1959).
  8. E. C. Rea, A. Y. Chang, R. K. Hanson, J. Quant. Spectrosc. Radiat. Transfer 41, 29 (1989).
    [CrossRef]
  9. B. Shirinzadeh, D. M. Bakalyar, C. C. Wang, J. Chem. Phys. 82, 2877 (1985).
    [CrossRef]
  10. J. M. Seiner, T. D. Norum, presented at AIAA 6th Aeroacoustics Conference (American Institute of Aeronautics and Astronautics, Washington, D.C., 1980), paper AIAA-80-0965.

1989 (2)

E. C. Rea, A. Y. Chang, R. K. Hanson, J. Quant. Spectrosc. Radiat. Transfer 41, 29 (1989).
[CrossRef]

P. H. Paul, M. P. Lee, R. K. Hanson, Opt. Lett. 14, 417 (1989).
[CrossRef] [PubMed]

1988 (2)

1987 (1)

1985 (1)

B. Shirinzadeh, D. M. Bakalyar, C. C. Wang, J. Chem. Phys. 82, 2877 (1985).
[CrossRef]

1983 (2)

E. C. Rea, R. K. Hanson, Appl. Opt. 22, 518 (1983).
[CrossRef] [PubMed]

S. Cheng, M. Zimmermann, R. B. Miles, Appl. Phys. Lett. 43, 143 (1983).
[CrossRef]

Bakalyar, D. M.

B. Shirinzadeh, D. M. Bakalyar, C. C. Wang, J. Chem. Phys. 82, 2877 (1985).
[CrossRef]

Chang, A. Y.

E. C. Rea, A. Y. Chang, R. K. Hanson, J. Quant. Spectrosc. Radiat. Transfer 41, 29 (1989).
[CrossRef]

A. Y. Chang, E. C. Rea, R. K. Hanson, Appl. Opt. 26, 885 (1987).
[CrossRef] [PubMed]

Cheng, S.

S. Cheng, M. Zimmermann, R. B. Miles, Appl. Phys. Lett. 43, 143 (1983).
[CrossRef]

Gribsby, C. E.

E. S. Love, C. E. Gribsby, L. P. Lee, M. J. Woodling, NASA Tech. Rep. R-6 (National Aeronautics and Space Administration, Washington, D.C., 1959).

Hanson, R. K.

Hiller, B.

Lee, L. P.

E. S. Love, C. E. Gribsby, L. P. Lee, M. J. Woodling, NASA Tech. Rep. R-6 (National Aeronautics and Space Administration, Washington, D.C., 1959).

Lee, M. P.

Love, E. S.

E. S. Love, C. E. Gribsby, L. P. Lee, M. J. Woodling, NASA Tech. Rep. R-6 (National Aeronautics and Space Administration, Washington, D.C., 1959).

Miles, R. B.

S. Cheng, M. Zimmermann, R. B. Miles, Appl. Phys. Lett. 43, 143 (1983).
[CrossRef]

Norum, T. D.

J. M. Seiner, T. D. Norum, presented at AIAA 6th Aeroacoustics Conference (American Institute of Aeronautics and Astronautics, Washington, D.C., 1980), paper AIAA-80-0965.

Paul, P. H.

Rea, E. C.

Seiner, J. M.

J. M. Seiner, T. D. Norum, presented at AIAA 6th Aeroacoustics Conference (American Institute of Aeronautics and Astronautics, Washington, D.C., 1980), paper AIAA-80-0965.

Shirinzadeh, B.

B. Shirinzadeh, D. M. Bakalyar, C. C. Wang, J. Chem. Phys. 82, 2877 (1985).
[CrossRef]

Wang, C. C.

B. Shirinzadeh, D. M. Bakalyar, C. C. Wang, J. Chem. Phys. 82, 2877 (1985).
[CrossRef]

Woodling, M. J.

E. S. Love, C. E. Gribsby, L. P. Lee, M. J. Woodling, NASA Tech. Rep. R-6 (National Aeronautics and Space Administration, Washington, D.C., 1959).

Zimmermann, M.

S. Cheng, M. Zimmermann, R. B. Miles, Appl. Phys. Lett. 43, 143 (1983).
[CrossRef]

Appl. Opt. (4)

Appl. Phys. Lett. (1)

S. Cheng, M. Zimmermann, R. B. Miles, Appl. Phys. Lett. 43, 143 (1983).
[CrossRef]

J. Chem. Phys. (1)

B. Shirinzadeh, D. M. Bakalyar, C. C. Wang, J. Chem. Phys. 82, 2877 (1985).
[CrossRef]

J. Quant. Spectrosc. Radiat. Transfer (1)

E. C. Rea, A. Y. Chang, R. K. Hanson, J. Quant. Spectrosc. Radiat. Transfer 41, 29 (1989).
[CrossRef]

Opt. Lett. (1)

Other (2)

E. S. Love, C. E. Gribsby, L. P. Lee, M. J. Woodling, NASA Tech. Rep. R-6 (National Aeronautics and Space Administration, Washington, D.C., 1959).

J. M. Seiner, T. D. Norum, presented at AIAA 6th Aeroacoustics Conference (American Institute of Aeronautics and Astronautics, Washington, D.C., 1980), paper AIAA-80-0965.

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Figures (4)

Fig. 1
Fig. 1

Experimental setup. A’s, apertures; F’s, filters. The solid lines denote the beam paths. Vis, visible.

Fig. 2
Fig. 2

Raw data traces showing both single-sweep and sweep-averaged (40 sweeps) records of scan over the OH R1(7) and R1(11) line pair at 32 625 cm−1, simultaneously recorded in absorption in the reference flame and in fluorescence from the jet. Vis, visible.

Fig. 3
Fig. 3

Reduced data for both single-sweep and sweep-averaged scans showing the first complete line pairs (at 350 μsec) of Fig. 2. The 2.9-GHz line shift corresponds to 890 m/sec. Solid curves, jet fluorescence data; dashed curves, flame absorption data; dotted curves, best fit to jet fluorescence data.

Fig. 4
Fig. 4

Jet centerline conditions measured from sweep-averaged profiles (25 sweeps). D = 1.6 mm.

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