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Time-delayed detection of laser-induced incandescence for the two-dimensional visualization of soot in flames

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Abstract

The time-delayed detection of soot incandescence is demonstrated to discriminate against other laser-induced signals that have shorter decay times. This technique exhibits high sensitivity and no need for any verification of the spectral content of the signal; it is promising for two-dimensional imaging applications in hostile environments, such as in practical flame and combustion chambers, in which it permits an easy visualization of sooty regions.

© 1994 Optical Society of America

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