Imaging Fourier transform spectrometer

Andre J. Villemaire; Serge Fortin; Jean Giroux; Tracy Smithson; Raymond J. Oermann

doi:10.1117/12.210893

12 June 1995 Imaging Fourier transform spectrometer

Andre J. Villemaire, Serge Fortin, Jean Giroux, Tracy Smithson, Raymond J. Oermann

Proceedings Volume 2480, Imaging Spectrometry; (1995) https://doi.org/10.1117/12.210893
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

Design considerations and experimental measurements from an imaging Fourier transform spectrometer are presented. The system is based on the Bomem MB-series of Fourier transform interferometer and is capable of more than 8 frames/second at 4 cm(superscript -1 apodized spectral resolution. The interferometer features dual output beams, allowing for example, the coverage of two different spectral ranges using a short-wave array and a long- wave array. The present system uses a set of two 8 X 8 InSb detector arrays to cover the 2 to 5.3 micrometers spectral range on two coaligned fields of view of 4 mrad X 4 mrad and 1 mrad X 1 mrad. Predicted noise equivalent spectral radiance as well as instrument lineshape are compared to measurements on the actual system. Particular emphasis is devoted to the behavior of the instrument lineshape with respect to off-axis position in the focal plane.

Citation Download Citation

Andre J. Villemaire, Serge Fortin, Jean Giroux, Tracy Smithson, and Raymond J. Oermann "Imaging Fourier transform spectrometer", Proc. SPIE 2480, Imaging Spectrometry, (12 June 1995); https://doi.org/10.1117/12.210893

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