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Optical Engineering

Large Field-Of-View Interferometers For Environmental Sensing
Author(s): Doran J. Baker
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Paper Abstract

The interferometer-spectrometer is an exceptionally powerful instrument for remotely sensing optical emission spectra associated with the environment. However, when a conventional Michelson interferometer is operated at high spectral resolution, a very narrow viewing field results. For the sensing of emissions which have a significant spatial distribution, which is often the case for environmental species, optical compensation can be employed to open up the field of view. The resulting reduction in observation time for the compensated relative to the uncompensated interferometer is R294/4. For a practical instrument using prism-type compensator elements, the viewing field can be extended to more than ten degrees full angle. Consequently, the observation time required to obtain a spectrum is reduced by more than two orders of magnitude.

Paper Details

Date Published: 1 August 1980
PDF: 3 pages
Opt. Eng. 19(4) 194515 doi: 10.1117/12.7972552
Published in: Optical Engineering Volume 19, Issue 4
Show Author Affiliations
Doran J. Baker, Utah State University (United States)

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