2-D absolute OH concentration profiles in atmospheric flames using planar LIF in a bi-directional laser beam configuration

M. Versluis*, N. Georgiev, L. Martinsson, M. Aldén, S. Kröll

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

54 Citations (Scopus)

Abstract

A technique has been developed to measure the absolute OH concentration at atmospheric pressures by using a combination of direct absorption and laser-induced fluorescence (LIF) detection. The technique is independent of collisions, because it uses laser beams in a bi-directional configuration, thereby eliminating collisional quenching. The absolute OH concentration is measured spatially resolved in two dimensions by using absorption on the Q1(6) rotational line in the A2Σ+(ν′ = 0) ← X2Π(ν′ = 0) band of OH at 309 nm. The requirements for obtaining a good signal-to-noise ratio for the technique are discussed and the possibilities of single-shot measurements are investigated.

Original languageEnglish
Pages (from-to)411-417
Number of pages7
JournalApplied physics B: Lasers and optics
Volume65
Issue number3
DOIs
Publication statusPublished - 1 Jan 1997
Externally publishedYes

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laser induced fluorescence
Atmospheric pressure
Laser beams
flames
Quenching
Signal to noise ratio
Fluorescence
laser beams
Lasers
profiles
configurations
shot
atmospheric pressure
signal to noise ratios
quenching
requirements
collisions

Cite this

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abstract = "A technique has been developed to measure the absolute OH concentration at atmospheric pressures by using a combination of direct absorption and laser-induced fluorescence (LIF) detection. The technique is independent of collisions, because it uses laser beams in a bi-directional configuration, thereby eliminating collisional quenching. The absolute OH concentration is measured spatially resolved in two dimensions by using absorption on the Q1(6) rotational line in the A2Σ+(ν′ = 0) ← X2Π(ν′ = 0) band of OH at 309 nm. The requirements for obtaining a good signal-to-noise ratio for the technique are discussed and the possibilities of single-shot measurements are investigated.",
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2-D absolute OH concentration profiles in atmospheric flames using planar LIF in a bi-directional laser beam configuration. / Versluis, M.; Georgiev, N.; Martinsson, L.; Aldén, M.; Kröll, S.

In: Applied physics B: Lasers and optics, Vol. 65, No. 3, 01.01.1997, p. 411-417.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Kröll, S.

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