Abstract

A tunable, narrow-band ArF laser has been used for laser-induced fluorescence detection of NO in natural abundance in a flame experiment. P and R branches of the D 2v′ = 0 ← X 2Π3/2,1/2 v″ = 1 transition were observed probing rotational states between J″ = 19.5 and J″ = 44.5. A single-shot detection limit of 1 part in 106 was found with a monochromator-based, dispersed-fluorescence detection system. In an experimental setup, determination of undispersed laser-induced fluorescence detection limits at or below the 1-part-in-109 range should be possible, because the narrow-band laser can be used to suppress all other sources of contaminating fluorescence even for detection of trace NO. The NO B 2Π v′ = 7 ← X 2Π v″ = 0 transition was also observed in a cell experiment but not in the flame and is reported here.

© 1988 Optical Society of America

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References

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  1. S. S. Penner, C. P. Wang, M. Y. Bahadori, in Proceedings of the Twentieth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1984), p. 1149.
  2. D. R. Grieser, R. H. Barnes, Appl. Opt. 19, 741 (1980).
    [CrossRef] [PubMed]
  3. J. F. Verdieck, P. A. Bonczyk, in Proceedings of the Eighteenth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), p. 1559.
  4. C. Morely, in Proceedings of the Eighteenth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), p. 23.
  5. G. Kychakoff, K. Knapp, R. P. Howe, R. K. Hanson, AIAA J. 22, 153 (1984).
    [CrossRef]
  6. P. Andresen, A. Bath, W. Groeger, H. W. Luelf, G. Meijer, J. J. ter Meulen, Appl. Opt. 27, 365 (1988).
    [CrossRef] [PubMed]
  7. A. M. Wodtke, L. Huwel, H. Schluter, H. Voges, G. Meijer, P. Andresen, in Proceedings of the Twenty-fourth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., to be published).
  8. H. Okabe, Photochemistry of Small Molecules (Wiley, New York, 1978), p. 174.
  9. R. P. Lucht, in Laser Spectroscopy and Its Applications, L. J. Radziemski, R. W. Solarz, J. A. Paisner, eds., Vol. 11 of Optical Engineering Series (Dekker, New York, 1987), p. 623.

1988 (1)

1984 (1)

G. Kychakoff, K. Knapp, R. P. Howe, R. K. Hanson, AIAA J. 22, 153 (1984).
[CrossRef]

1980 (1)

Andresen, P.

P. Andresen, A. Bath, W. Groeger, H. W. Luelf, G. Meijer, J. J. ter Meulen, Appl. Opt. 27, 365 (1988).
[CrossRef] [PubMed]

A. M. Wodtke, L. Huwel, H. Schluter, H. Voges, G. Meijer, P. Andresen, in Proceedings of the Twenty-fourth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., to be published).

Bahadori, M. Y.

S. S. Penner, C. P. Wang, M. Y. Bahadori, in Proceedings of the Twentieth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1984), p. 1149.

Barnes, R. H.

Bath, A.

Bonczyk, P. A.

J. F. Verdieck, P. A. Bonczyk, in Proceedings of the Eighteenth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), p. 1559.

Grieser, D. R.

Groeger, W.

Hanson, R. K.

G. Kychakoff, K. Knapp, R. P. Howe, R. K. Hanson, AIAA J. 22, 153 (1984).
[CrossRef]

Howe, R. P.

G. Kychakoff, K. Knapp, R. P. Howe, R. K. Hanson, AIAA J. 22, 153 (1984).
[CrossRef]

Huwel, L.

A. M. Wodtke, L. Huwel, H. Schluter, H. Voges, G. Meijer, P. Andresen, in Proceedings of the Twenty-fourth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., to be published).

Knapp, K.

G. Kychakoff, K. Knapp, R. P. Howe, R. K. Hanson, AIAA J. 22, 153 (1984).
[CrossRef]

Kychakoff, G.

G. Kychakoff, K. Knapp, R. P. Howe, R. K. Hanson, AIAA J. 22, 153 (1984).
[CrossRef]

Lucht, R. P.

R. P. Lucht, in Laser Spectroscopy and Its Applications, L. J. Radziemski, R. W. Solarz, J. A. Paisner, eds., Vol. 11 of Optical Engineering Series (Dekker, New York, 1987), p. 623.

Luelf, H. W.

Meijer, G.

P. Andresen, A. Bath, W. Groeger, H. W. Luelf, G. Meijer, J. J. ter Meulen, Appl. Opt. 27, 365 (1988).
[CrossRef] [PubMed]

A. M. Wodtke, L. Huwel, H. Schluter, H. Voges, G. Meijer, P. Andresen, in Proceedings of the Twenty-fourth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., to be published).

Morely, C.

C. Morely, in Proceedings of the Eighteenth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), p. 23.

Okabe, H.

H. Okabe, Photochemistry of Small Molecules (Wiley, New York, 1978), p. 174.

Penner, S. S.

S. S. Penner, C. P. Wang, M. Y. Bahadori, in Proceedings of the Twentieth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1984), p. 1149.

Schluter, H.

A. M. Wodtke, L. Huwel, H. Schluter, H. Voges, G. Meijer, P. Andresen, in Proceedings of the Twenty-fourth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., to be published).

ter Meulen, J. J.

Verdieck, J. F.

J. F. Verdieck, P. A. Bonczyk, in Proceedings of the Eighteenth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), p. 1559.

Voges, H.

A. M. Wodtke, L. Huwel, H. Schluter, H. Voges, G. Meijer, P. Andresen, in Proceedings of the Twenty-fourth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., to be published).

Wang, C. P.

S. S. Penner, C. P. Wang, M. Y. Bahadori, in Proceedings of the Twentieth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1984), p. 1149.

Wodtke, A. M.

A. M. Wodtke, L. Huwel, H. Schluter, H. Voges, G. Meijer, P. Andresen, in Proceedings of the Twenty-fourth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., to be published).

AIAA J. (1)

G. Kychakoff, K. Knapp, R. P. Howe, R. K. Hanson, AIAA J. 22, 153 (1984).
[CrossRef]

Appl. Opt. (2)

Other (6)

J. F. Verdieck, P. A. Bonczyk, in Proceedings of the Eighteenth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), p. 1559.

C. Morely, in Proceedings of the Eighteenth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), p. 23.

S. S. Penner, C. P. Wang, M. Y. Bahadori, in Proceedings of the Twentieth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., 1984), p. 1149.

A. M. Wodtke, L. Huwel, H. Schluter, H. Voges, G. Meijer, P. Andresen, in Proceedings of the Twenty-fourth International Symposium on Combustion (Combustion Institute, Pittsburgh, Pa., to be published).

H. Okabe, Photochemistry of Small Molecules (Wiley, New York, 1978), p. 174.

R. P. Lucht, in Laser Spectroscopy and Its Applications, L. J. Radziemski, R. W. Solarz, J. A. Paisner, eds., Vol. 11 of Optical Engineering Series (Dekker, New York, 1987), p. 623.

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Figures (3)

Fig. 1
Fig. 1

NO D 2v′ = 0 ← X 2Π3/2,1/2 v″ = 1 transitions observed with an unfocused tunable ArF laser in a propane–O2 flame. The concentration of NO is estimated to be 100 ppm. Emission from v′ = 0 to v″ = 3 was monitored at 208.0 nm with a 0.6-nm monochromator resolution.

Fig. 2
Fig. 2

NO D 2v′ = 0 ← X 2Π3/2,1/2 v″ =1 (asterisks) and B 2Π v′ ν 7 ← X 2Π v″ = 0 transitions measured in a cell at 2 Torr pressure and 300 K. Monochromator conditions are the same as for Fig. 1.

Fig. 3
Fig. 3

(a) Emission spectrum observed with broadband laser excitation in the flame. (b) Emission spectrum observed when the D 2v′ = 0 ← X 2Π3/2,1/2 v″ = 1, R1 (26.5) transition is excited with the narrow-band laser. Quenching of the NO C state is observed, and O2 fluorescence is suppressed by at least a factor of 40.

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