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Proceedings Paper

Imaging Fourier transform spectrometer
Author(s): Charles L. Bennett; Michael R. Carter; David J. Fields; John A. Moreno Hernandez
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Paper Abstract

The operating principles of an Imaging Fourier Transform Spectrometer (IFTS) are discussed. The advantages and disadvantages of such instruments with respect to alternative imaging spectrometers are discussed. The primary advantages of the IFTS are the capacity to acquire more than an order of magnitude more spectral channels than alternative systems with more than an order of magnitude greater etendue than for alternative systems. The primary disadvantage of IFTS, or FTS is general, is the sensitivity to temporal fluctuations, either random or periodic. Data from the IRIFTS (ir IFTS) prototype instrument, sensitive in the infrared, are presented having a spectral sensitivity of 0.01 absorbance units per pixel, a spectral resolution of 6 cm-1 over the range 0 to 7899 cm-1, and a spatial resolution of 2.5 mr.

Paper Details

Date Published: 23 September 1993
PDF: 10 pages
Proc. SPIE 1937, Imaging Spectrometry of the Terrestrial Environment, (23 September 1993); doi: 10.1117/12.157065
Show Author Affiliations
Charles L. Bennett, Lawrence Livermore National Lab. (United States)
Michael R. Carter, 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. 1937:
Imaging Spectrometry of the Terrestrial Environment
Gregg Vane, Editor(s)

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