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23 September 1993 Imaging Fourier transform spectrometer
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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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Charles L. Bennett, Michael R. Carter, David J. Fields, and John A. Moreno Hernandez "Imaging Fourier transform spectrometer", Proc. SPIE 1937, Imaging Spectrometry of the Terrestrial Environment, (23 September 1993);

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