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Proceedings Paper

Gaseous effluent monitoring and identification using an imaging Fourier transform spectrometer
Author(s): Michael R. Carter; Charles L. Bennett; David J. Fields; John A. Moreno Hernandez
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Paper Abstract

We are developing an imaging Fourier transform spectrometer for chemical effluent monitoring. The system consists of a 2D IR imaging array in the focal plane of a Michelson interferometer. Individual images are coordinated with the positioning of a moving mirror in the Michelson interferometer. A 3D data cube with two spatial dimensions and one interferogram dimension is then Fourier transformed to produce a hyperspectral data cube with one spectral dimension and two spatial dimensions. The spectral range of the instrument is determined by the choice of optical components and the spectral range of the focal plane array. Measurements in the near UV, visible, near IR, and mid-IR ranges are possible with the existing instrument. Gaseous effluent monitoring and identification measurements will be primarily in the `fingerprint' region of the spectrum, ((lambda) equals 8 to 12 micrometers ). Initial measurements of effluent using this imaging interferometer in the mid-IR will be presented.

Paper Details

Date Published: 28 March 1994
PDF: 11 pages
Proc. SPIE 2092, Substance Detection Systems, (28 March 1994); doi: 10.1117/12.171245
Show Author Affiliations
Michael R. Carter, Lawrence Livermore National Lab. (United States)
Charles L. Bennett, Lawrence Livermore National Lab. (United States)
David J. Fields, Lawrence Livermore National Lab. (United States)
John A. Moreno Hernandez, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 2092:
Substance Detection Systems
Geoffrey L. Harding; Richard C. Lanza; Lawrence J. Myers; Peter A. Young, Editor(s)

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