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Optics Letters

Optics Letters


  • Vol. 11, Iss. 5 — May. 1, 1986
  • pp: 279–281

Detection of OH in a flame by degenerate four-wave mixing

P. Ewart and S. V. O’Leary  »View Author Affiliations

Optics Letters, Vol. 11, Issue 5, pp. 279-281 (1986)

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The detection of OH in a laminar premixed air–methane flame by degenerate four-wave mixing (DFWM) is The detection reported. The four-wave mixing spectrum was recorded in the region of the R1, R2 band heads of the (0, 0) 2∑–2Π transition, showing clearly resolved rotational structure. Applications of the DFWM technique to combustion are discussed. As an example, the distribution of sodium atoms in a sodium-seeded flame has been diagnostics measured using a 90° geometry to enhance spatial resolution.

© 1986 Optical Society of America

Original Manuscript: December 23, 1985
Manuscript Accepted: February 26, 1986
Published: May 1, 1986

P. Ewart and S. V. O’Leary, "Detection of OH in a flame by degenerate four-wave mixing," Opt. Lett. 11, 279-281 (1986)

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