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

doi:10.1007/s003400050289

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 journal › Article › Academic › peer-review

66 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 language	English
Pages (from-to)	411-417
Number of pages	7
Journal	Applied physics B: Lasers and optics
Volume	65
Issue number	3
DOIs	https://doi.org/10.1007/s003400050289
Publication status	Published - 1 Jan 1997
Externally published	Yes

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

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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AU - Versluis, M.

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AU - Aldén, M.

AU - Kröll, S.

PY - 1997/1/1

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N2 - 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.

AB - 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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ER -

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

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