Abstract

The Bayesian deconvolution algorithm described in a preceding paper [Appl. Opt. 43, 5669–5681 (2004)] is applied to measurement of the two-dimensional stoichiometry field in a combustible methane-air mixture by Raman imaging through a spectrograph. Stoichiometry (fuel equivalence ratio) is derived from the number density fields of methane and nitrogen, with a signal-to-noise ratio of ∼10 in a 600-laser-shot average. Prospects for single-shot Raman imaging are discussed.

© 2004 Optical Society of America

Quantitative imaging through a spectrograph. 1. Principles and theory

René Tolboom, Nico Dam, Hans ter Meulen, Joris Mooij, and Hans Maassen
Appl. Opt. 43(30) 5669-5681 (2004)

Quantitative spectrally resolved imaging through a spectrograph

René A. L. Tolboom, NicoJ. Dam, Nanna M. Sijtsema, and J. J. ter Meulen
Opt. Lett. 28(21) 2046-2048 (2003)

Temperature imaging in nonpremixed flames by joint filtered Rayleigh and Raman scattering

Sean P. Kearney, Robert W. Schefer, Steven J. Beresh, and Thomas W. Grasser
Appl. Opt. 44(9) 1548-1558 (2005)

Application of 266-nm and 355-nm Nd:YAG laser radiation for the investigation of fuel-rich sooting hydrocarbon flames by Raman scattering

Jan Egermann, Thomas Seeger, and Alfred Leipertz
Appl. Opt. 43(29) 5564-5574 (2004)

Pure rotational coherent anti-Stokes Raman spectroscopy in mixtures of CO and N₂

Mikael Afzelius, Christian Brackmann, Fredrik Vestin, and Per-Erik Bengtsson
Appl. Opt. 43(36) 6664-6672 (2004)