Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..191....2s&link_type=abstract
In: Multiplex and/or high-throughput spectroscopy; Proceedings of the Seminar, San Diego, Calif., August 27, 28, 1979. (A80-4282
Astronomy and Astrophysics
Astronomy
Astronomical Spectroscopy, Infrared Spectrometers, Instrument Compensation, Interferometers, Design Analysis, Near Infrared Radiation, Night Sky, Resolution, Rocket-Borne Instruments
Scientific paper
The paper discussed three generations of field-widened interferometer spectrometers developed for use in the visible and near infrared spectral regions. Field compensation for these instruments is produced with optical wedges, and a throughput of 1 sq cm sr was achieved with a resolution of 2/cm. Measurement time gains compared with conventional interferometers of more than 100 were shown; two of these instruments are cooled to 77 K to reduce instrument background and incorporate helium cooled Si:Bi detectors. The design criteria of critical components of this interferometer were investigated and techniques to utilize the large throughput discussed; measured gains were compared with theoretical gains and future possibilities explored. Finally, an airglow atlas of the night sky from 4000-10,000/cm at a resolution of 2.5/cm is presented to demonstrate instrument capabilities.
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