Abstract
We report a theoretical and experimental investigation of the effects of collisional quenching on resonant degenerate four-wave mixing (DFWM). Using single-mode laser radiation, peak signal intensity measurements were performed on an isolated line in the A – X transition of NO. By using appropriate mixtures of N2 and CO2 as buffer gases, we varied the collisional quenching rate over several orders of magnitude while maintaining a fixed total collisional dephasing rate. The mixtures had approximately 100 Torr total pressure and were at room temperature. For I/I sat approximately equal to 0.02, DFWM intensities were found to be less affected by variations in quench rate than were laser-induced fluorescence (LIF) intensities (I and I sat are the pump laser and one-photon saturation intensities, respectively). Moreover, for I/I sat roughly equal to 0.5, DFWM intensities were observed to be nearly independent of quench rate. The results are compared to two theoretical predictions, with good agreement observed. Both theories indicate that the minimum sensitivity of DFWM to quenching occurs near I/I sat≈1.
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A good review of LIF and other combustion diagnostics is found in A.C. Eckbreth: Laser Diagnostics for Combustion Temperature and Species (Abacus, Cambridge, MA 1988)
D.J. Rakestraw, R.L. Farrow, T. Dreier: Opt. Lett. 15, 709–711 (1990)
P. Ewart, M. Kaczmarek: Appl. Opt. 30, 3996–3999 (1991)
B. Yip, P.M. Danehy, R.K. Hanson: Opt. Lett. 17, 751–753 (1992)
I.P. Jefferies, A.J. Yates, P. Ewart: Coherent Raman Spectroscopy Application and New Developments, ed. by E. Castellucci (World Scientific, Singapore 1992)
D.S. Green, T.G. Owano, S. Williams, D.G. Goodwin, R.N. Zare, C.H. Kruger: Science 259, 1726–1729 (1993)
T. Dreier, D.J. Rakestraw: Opt. Lett. 15, 72–74 (1990)
J.W. Thoman, Jr., J.A. Gray, J.L. Durant, Jr., P.H. Paul: J. Chem. Phys. 97, 8156–8163 (1993)
J.A. Gray, P.H. Paul, J.L. Durant: Chem. Lett. 190, 266–270 (1992)
R.L. Abrams, J.F. Lam, R.C. Lind, D.G. Steel, P.F. Liao: Phase conjugation and high-resolution spectroscopy by resonant degenerate four-wave mixing. In Optical Phase Conjugation ed. by R.A. Fisher (Academic, New York 1983) pp. 211–284
R.P. Lucht, R.L. Farrow, D.J. Rakestraw: J. Opt. Soc. Am. B 10, 1908–1920 (1993)
S. Stenholm: Foundations of Laser Spectroscopy (Wiley, New York 1984) pp. 35, 74
H.P. Broida, T. Carrington: J. Chem. Phys. 38, 136–147 (1963)
R.L. Farrow, D.J. Rakestraw: Science 257, 1894–1900 (1992)
R.L. Farrow, D.J. Rakestraw, T. Dreier: J. Opt. Soc. Am. B 9, 1770–1777 (1992). In calculating |μ12|2 these authors mistakenly adjusted the O 12(2) line strength cited in Ref. [20] of their paper. Using the correct line-strength value of 1.94, |μ12|2 is computed to be 2.7×10−62 C2m2
A.Y. Chang, M.D. DiRosa, R.K. Hanson: J. Quant. Spectrosc. Radiat. Transfer 47, 375–390 (1992)
T. Ebata, Y. Anezaki, M. Fujii, N. Mikami, M. Ito: Chem. Phys. 84, 151–157 (1984)
P.K. Falcone, R.K. Hanson, C.H. Kruger: J. Quant. Spectrosc. Radiat. Transfer 29, 205–221 (1983)
A.S. Sudbø, M.M.T. Loy: J. Chem. Phys. 76, 3646–3654 (1982)
J.T. Yardley: Introduction to Molecular Energy Transfer (Academic, New York 1980) pp. 15–20
P.H. Paul, J.A. Gray, J.L. Durant, Jr., J.W. Thoman, Jr.: AIAA Journal (submitted)
J. Daily: Appl. Opt. 17, 225–229 (1978)
R.P. Lucht, D.W. Sweeney, N.M. Laurendeau: Combust. Flame 50, 189–205 (1983)
S. Williams, D.S. Green, S. Sethuraman, R.N. Zare: J. Am. Chem. Soc. 114, 9122–9130 (1992)
P.M. Danehy, E.J. Friedman-Hill, P.H. Paul, R.L. Farrow: J. Opt. Soc. Am. B., to be submitted
R.A. Copeland, J.B. Jeffries, D.R. Crosley: J. Mol. Spectrosc. 143, 183–185 (1990)
J.H. Bechtel, C.J. Dasch, R.E. Teets: Combustion research with lasers, Laser Applications, ed. by J.F. Ready, R.K. Erf (Academic, New York 1984) p. 145
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Danehy, P.M., Friedman-Hill, E.J., Lucht, R.P. et al. The effects of collisional quenching on degenerate four-wave mixing. Appl. Phys. B 57, 243–248 (1993). https://doi.org/10.1007/BF00325202
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DOI: https://doi.org/10.1007/BF00325202