Astronomical Fourier spectroscopy in the infrared

Details Astronomical Fourier spectroscopy in the infrared Astronomical Fourier spectroscopy in the infrared

Nov 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977infph..17..441m&link_type=abstract

(Workshop on High-Resolution Infrared- and Sub-Millimeter-Spectroscopy, 3rd, Bonn, West Germany, Mar. 8-10, 1977.) Infrared Phys

Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Fourier Transformation, Infrared Astronomy, Infrared Spectroscopy, Far Infrared Radiation, Michelson Interferometers, Multiplexing

Scientific paper

Fourier Transform Spectroscopy (FTS) in the far infrared is discussed, with emphasis on systems employing a Michelson interferometer in which two beams obtained by amplitude division are recombined after introduction of a relative phase delay. Throughput limitations and multiplex advantages of Michelson and Fabry-Perot interferometer systems are considered; the problem of source intensity fluctuations, which may be counteracted by phase modulation or rapid scanning, is also mentioned. Several FTS systems based on rapid scanning interferometers are described, including the system designed for use on the NASA Gerard P. Kuiper Airborne Observatory.

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