Abstract

Burst-mode planar laser-induced fluorescence (PLIF) imaging of the OH radical is demonstrated in laminar and turbulent hydrogen–air diffusion flames with pulse repetition rates up to 50kHz. Nearly 1mJ/pulse at 313.526nm is used to probe the OH P2(10) rotational transition in the (0,0) band of the A-X system. The UV radiation is generated by a high-speed-tunable, injection-seeded optical parametric oscillator pumped by a frequency-doubled megahertz-rate burst-mode Nd:YAG laser. Preliminary kilohertz-rate wavelength scanning of the temperature-broadened OH transition during PLIF imaging is also presented for the first time (to our knowledge), and possible strategies for spatiotemporally resolved planar OH spectroscopy are discussed.

© 2009 Optical Society of America

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References

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W. Paa, D. Muller, H. Stafast, and W. Triebel, Appl. Phys. B 86, 1 (2007).
[CrossRef]

2005

2002

2000

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

1999

C. F. Kaminski, J. Hult, and M. Aldén, Appl. Phys. B 68, 757 (1999).
[CrossRef]

Aldén, M.

Anderson, T. N.

Austin, B. D. W.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

Baxter, G. W.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

Christensen, M.

Gord, J. R.

Halloway, C. A.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

He, Y.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

Huab, J. G.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

Hult, J.

Hultqvist, A.

Jiang, N.

Johansson, B.

Kaminski, C. F.

C. F. Kaminski, J. Hult, and M. Aldén, Appl. Phys. B 68, 757 (1999).
[CrossRef]

Katta, V. R.

Lempert, W. R.

Lucht, R. P.

Meyer, T. R.

Milce, A. P.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

Miller, J. D.

Muller, D.

W. Paa, D. Muller, H. Stafast, and W. Triebel, Appl. Phys. B 86, 1 (2007).
[CrossRef]

Nibler, J. F.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

Nygren, J.

Orr, B. J.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

Paa, W.

W. Paa, D. Muller, H. Stafast, and W. Triebel, Appl. Phys. B 86, 1 (2007).
[CrossRef]

Payne, M. A.

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

Richter, M.

Roy, S.

Stafast, H.

W. Paa, D. Muller, H. Stafast, and W. Triebel, Appl. Phys. B 86, 1 (2007).
[CrossRef]

Switzer, G. L.

Triebel, W.

W. Paa, D. Muller, H. Stafast, and W. Triebel, Appl. Phys. B 86, 1 (2007).
[CrossRef]

Appl. Opt.

Appl. Phys. B

G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Huab, Y. He, A. P. Milce, J. F. Nibler, and B. J. Orr, Appl. Phys. B 71, 651 (2000).
[CrossRef]

W. Paa, D. Muller, H. Stafast, and W. Triebel, Appl. Phys. B 86, 1 (2007).
[CrossRef]

C. F. Kaminski, J. Hult, and M. Aldén, Appl. Phys. B 68, 757 (1999).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Diagram of a high-speed OH PLIF imaging system: HR, high reflector; OC, output coupler; HWP, half-wave plate.

Fig. 2
Fig. 2

Corrected and uncorrected OH-fluorescence intensity from a 50 kHz burst.

Fig. 3
Fig. 3

Instantaneous images of OH PLIF from a 50 kHz burst in a Hencken flame (a) before and (b) after normalization for spatial laser-intensity variations.

Fig. 4
Fig. 4

Partial OH PLIF image sequence from atmospheric-pressure turbulent H 2 -air diffusion flame showing OH layer evolution and extinction caused by turbulence–flame interactions.

Fig. 5
Fig. 5

OH PLIF signal during wavelength scanning compared with theoretical Voigt profile.

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