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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 21 — Jul. 20, 1998
  • pp: 4823–4833

Comparisons of laser-saturated, laser-induced, and planar laser-induced fluorescence measurements of nitric oxide in a lean direct-injection spray flame

Clayton S. Cooper, Rayavarapu V. Ravikrishna, and Normand M. Laurendeau  »View Author Affiliations


Applied Optics, Vol. 37, Issue 21, pp. 4823-4833 (1998)
http://dx.doi.org/10.1364/AO.37.004823


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Abstract

We report quantitative, spatially resolved laser-saturated fluorescence (LSF), linear laser-induced fluorescence (LIF), and planar laser-induced fluorescence (PLIF) measurements of nitric oxide (NO) concentration in a preheated, lean direct-injection spray flame at atmospheric pressure. The spray is produced by a hollow-cone, pressure-atomized nozzle supplied with liquid heptane, and the overall equivalence ratio is unity. NO is excited by means of the Q2(26.5) transition of the γ(0, 0) band. LSF and LIF detection are performed in a 2-nm region centered on the γ(0, 1) band. PLIF detection is performed in a broad ∼70-nm region with a peak transmission at 270 nm. Quantitative radial NO profiles obtained by LSF are presented and analyzed so as to correct similar LIF and PLIF profiles. Excellent agreement is achieved among the three fluorescence methodologies.

© 1998 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(280.2470) Remote sensing and sensors : Flames
(300.2530) Spectroscopy : Fluorescence, laser-induced

History
Original Manuscript: October 23, 1997
Revised Manuscript: March 10, 1998
Published: July 20, 1998

Citation
Clayton S. Cooper, Rayavarapu V. Ravikrishna, and Normand M. Laurendeau, "Comparisons of laser-saturated, laser-induced, and planar laser-induced fluorescence measurements of nitric oxide in a lean direct-injection spray flame," Appl. Opt. 37, 4823-4833 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-21-4823

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