Abstract
OH number densities and rotational temperatures up to 9 bar have been measured using double-phase-conjugate four-wave mixing (DPCFWM) in flat laminar premixed methane/air flames. By phase conjugating the backward pump to the forward pump with a phase-conjugate mirror conventional degenerate four-wave mixing (DFWM) becomes DPCFWM and quantitative measurements of OH radicals and OH rotational temperatures in flames at high pressure are possible. Our results show that conventional DFWM with a standard mirror is a low-biased measurement at high pressure primarly due to a fluctuating interaction volume which results from large fluctuating density gradients at the edge of the flame and from flame movement. A comparison is made between a laser-saturated fluorescence technique, conventional DFWM, and DPCFWM at 1, 5 and 9 bar.
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References
M. Winter, P.P. Radi: Opt. Lett. 17, 320–322 (1992)
M. Winter, P.P. Radi, A. Stampanoni: 24th Int'l Symp. on Combustion (The Combustion Institute, Pittsburgh 1992)
J. Pender, L. Hesselink: Opt. Lett. 10, 264–266 (1985)
T. Dreier, D.J. Rakestraw: Appl. Phys. B 50, 479–485 (1990)
T. Dreier, D.J. Rakestraw: Opt. Lett. 15, 72–74 (1990)
P. Ewart, S.V. O'Leary: Opt. Lett. 11, 279–281 (1986)
P. Ewart, P. Snowdon, I. Magnusson: Opt. Lett. 14, 563–565 (1989)
H. Bervas, B. Attal-Trétout, S. Le Boiteux, J.P. Taran: J. Phys. B: At. Mol. Opt. Phys. 25, 949–969 (1992)
D.J. Rakestraw, R.L. Farrow, T. Dreier: Opt. Lett. 15, 709–711 (1990)
D.J. Rakestraw, L.R. Thorne, T. Dreier: 23rd Int'l Symp. on Combustion (The Combustion Institute, Pittsburgh 1990) pp. 1901–1907
B. Attal-Trétout, S.C. Schmidt, E. Crété, P. Dumas, J.P. Taran: J. Quant. Spectrosc. Radiat. Transfer 43, 351–364 (1990)
.P. Desgroux, E. Domingues, D.A. Feikema, A. Garo, M.-J. Cotterau: 13th Int'l Colloquium on Dynamics of Explosions and Reactive Systems, Nagoya, Japan (1991)
R.L. Abrams, J.F. Lam, R.C. Lind, D.G. Steel, P.F. Liao: Optical Phase Conjugation, ed. by R.A. Fisher (Academic, New York 1983) pp. 211–284
I.L. Chidsey, D.R. Crosley: J. Quant. Spectrosc. Radiat. Transf. 23, 187–199 (1980)
A. Yarif: Quantum Electronics, 3rd edn. (Wiley, New York 1988) pp. 475–506
R.C. Weast, M.J. Astle, W.H. Beyer: 64th edn., CRC Handbook of Chemistry and Physics (CRC, Boca Raton, FL 1984)
K. Kohse-Höinghaus, U. Meier, B. Attal-Trétout: Appl. Opt. 29, 1560–1569 (1990)
P. Desgroux, E. Domingues, M.-J. Cottereau: Appl. Opt. 31, 2831–2838 (1992)
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Feikema, D.A., Domingues, E. & Cottereau, M.J. OH rotational temperature and number density measurements in high-pressure laminar flames using double phase-conjugate four-wave mixing. Appl. Phys. B 55, 424–429 (1992). https://doi.org/10.1007/BF00325181
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DOI: https://doi.org/10.1007/BF00325181