Multichannel Fabry-Perot spectrometer for infrared astronomy

Details Multichannel Fabry-Perot spectrometer for infrared astronomy Multichannel Fabry-Perot spectrometer for infrared astronomy

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apopt..25.4520j&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 25, Dec. 15, 1986, p. 4520-4522.

Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Fabry-Perot Spectrometers, Infrared Astronomy, Mirrors, Semiconductor Diodes, Solid State Lasers

Scientific paper

A multichannel design which makes use of the radiation normally rejected in a Fabry-Perot spectrometer is described, with application to infrared astronomy. The present optical design minimizes the diameters of the etalon and optics. The use of spherical mirrors ensures that no radiation is lost through the entrance aperture, and the beams can be completely collimated at the etalon. Laboratory studies demonstrate that the ability to employ eight channels increases by a factor of four the flux integrated during a given time period compared with that of a single-channel instrument. The spectrometer is nondispersive, and the source can be imaged at each of several output spectral positions.

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